Home / 54,554.51-81,831.77-15,111.63

Finding the Fourth Proportional to 54,554.51, 81,831.77 and 15,111.63

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Solution

The fourth proportional to 54,554.51, 81,831.77 and 15,111.63 is: 22,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,554.51 : 81,831.77 = 15,111.63 : x
  2. Step 2: Convert to fraction form
    54,554.51/81,831.77 = 15,111.63/x
  3. Step 3: Cross multiply
    54,554.51x = 81,831.77 × 15,111.63
  4. Step 4: Simplify right side
    54,554.51x = 1,236,611,411.60
  5. Step 5: Solve for x
    x = 1,236,611,411.60/54,554.51
  6. Step 6: Final answer
    x = 22,667.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.