Home / 90,459.26-124,752.11-56,470.88

Finding the Fourth Proportional to 90,459.26, 124,752.11 and 56,470.88

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Solution

The fourth proportional to 90,459.26, 124,752.11 and 56,470.88 is: 77,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,459.26 : 124,752.11 = 56,470.88 : x
  2. Step 2: Convert to fraction form
    90,459.26/124,752.11 = 56,470.88/x
  3. Step 3: Cross multiply
    90,459.26x = 124,752.11 × 56,470.88
  4. Step 4: Simplify right side
    90,459.26x = 7,044,861,151.20
  5. Step 5: Solve for x
    x = 7,044,861,151.20/90,459.26
  6. Step 6: Final answer
    x = 77,878.83

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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.