Home / 90,195.28-124,470.66-56,217.52

Finding the Fourth Proportional to 90,195.28, 124,470.66 and 56,217.52

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Solution

The fourth proportional to 90,195.28, 124,470.66 and 56,217.52 is: 77,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195.28 : 124,470.66 = 56,217.52 : x
  2. Step 2: Convert to fraction form
    90,195.28/124,470.66 = 56,217.52/x
  3. Step 3: Cross multiply
    90,195.28x = 124,470.66 × 56,217.52
  4. Step 4: Simplify right side
    90,195.28x = 6,997,431,817.96
  5. Step 5: Solve for x
    x = 6,997,431,817.96/90,195.28
  6. Step 6: Final answer
    x = 77,580.91

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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.