Home / 90,222.20-124,505.13-49,935.11

Finding the Fourth Proportional to 90,222.20, 124,505.13 and 49,935.11

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Solution

The fourth proportional to 90,222.20, 124,505.13 and 49,935.11 is: 68,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,222.20 : 124,505.13 = 49,935.11 : x
  2. Step 2: Convert to fraction form
    90,222.20/124,505.13 = 49,935.11/x
  3. Step 3: Cross multiply
    90,222.20x = 124,505.13 × 49,935.11
  4. Step 4: Simplify right side
    90,222.20x = 6,217,177,277.02
  5. Step 5: Solve for x
    x = 6,217,177,277.02/90,222.20
  6. Step 6: Final answer
    x = 68,909.61

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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.