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Finding the Fourth Proportional to 90,166.62, 124,428.86 and 49,877.22

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Solution

The fourth proportional to 90,166.62, 124,428.86 and 49,877.22 is: 68,829.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,166.62 : 124,428.86 = 49,877.22 : x
  2. Step 2: Convert to fraction form
    90,166.62/124,428.86 = 49,877.22/x
  3. Step 3: Cross multiply
    90,166.62x = 124,428.86 × 49,877.22
  4. Step 4: Simplify right side
    90,166.62x = 6,206,165,624.57
  5. Step 5: Solve for x
    x = 6,206,165,624.57/90,166.62
  6. Step 6: Final answer
    x = 68,829.97

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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.