Home / 90,372.09-124,711.97-49,535.90

Finding the Fourth Proportional to 90,372.09, 124,711.97 and 49,535.90

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Solution

The fourth proportional to 90,372.09, 124,711.97 and 49,535.90 is: 68,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,372.09 : 124,711.97 = 49,535.90 : x
  2. Step 2: Convert to fraction form
    90,372.09/124,711.97 = 49,535.90/x
  3. Step 3: Cross multiply
    90,372.09x = 124,711.97 × 49,535.90
  4. Step 4: Simplify right side
    90,372.09x = 6,177,718,803.48
  5. Step 5: Solve for x
    x = 6,177,718,803.48/90,372.09
  6. Step 6: Final answer
    x = 68,358.70

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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.