Home / 90,699.28-125,044.77-74,505.76

Finding the Fourth Proportional to 90,699.28, 125,044.77 and 74,505.76

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Solution

The fourth proportional to 90,699.28, 125,044.77 and 74,505.76 is: 102,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699.28 : 125,044.77 = 74,505.76 : x
  2. Step 2: Convert to fraction form
    90,699.28/125,044.77 = 74,505.76/x
  3. Step 3: Cross multiply
    90,699.28x = 125,044.77 × 74,505.76
  4. Step 4: Simplify right side
    90,699.28x = 9,316,555,622.88
  5. Step 5: Solve for x
    x = 9,316,555,622.88/90,699.28
  6. Step 6: Final answer
    x = 102,719.18

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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.