Home / 55,261.70-76,261.13-30,111.20

Finding the Fourth Proportional to 55,261.70, 76,261.13 and 30,111.20

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Solution

The fourth proportional to 55,261.70, 76,261.13 and 30,111.20 is: 41,553.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,261.70 : 76,261.13 = 30,111.20 : x
  2. Step 2: Convert to fraction form
    55,261.70/76,261.13 = 30,111.20/x
  3. Step 3: Cross multiply
    55,261.70x = 76,261.13 × 30,111.20
  4. Step 4: Simplify right side
    55,261.70x = 2,296,313,605.79
  5. Step 5: Solve for x
    x = 2,296,313,605.79/55,261.70
  6. Step 6: Final answer
    x = 41,553.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.