Home / 90,941.19-125,505.14-55,132.71

Finding the Fourth Proportional to 90,941.19, 125,505.14 and 55,132.71

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Solution

The fourth proportional to 90,941.19, 125,505.14 and 55,132.71 is: 76,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,941.19 : 125,505.14 = 55,132.71 : x
  2. Step 2: Convert to fraction form
    90,941.19/125,505.14 = 55,132.71/x
  3. Step 3: Cross multiply
    90,941.19x = 125,505.14 × 55,132.71
  4. Step 4: Simplify right side
    90,941.19x = 6,919,438,487.13
  5. Step 5: Solve for x
    x = 6,919,438,487.13/90,941.19
  6. Step 6: Final answer
    x = 76,086.96

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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.