Home / 54,391.70-81,587.54-19,332.74

Finding the Fourth Proportional to 54,391.70, 81,587.54 and 19,332.74

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Solution

The fourth proportional to 54,391.70, 81,587.54 and 19,332.74 is: 28,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,391.70 : 81,587.54 = 19,332.74 : x
  2. Step 2: Convert to fraction form
    54,391.70/81,587.54 = 19,332.74/x
  3. Step 3: Cross multiply
    54,391.70x = 81,587.54 × 19,332.74
  4. Step 4: Simplify right side
    54,391.70x = 1,577,310,193.46
  5. Step 5: Solve for x
    x = 1,577,310,193.46/54,391.70
  6. Step 6: Final answer
    x = 28,999.10

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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.