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Finding the Fourth Proportional to 90,250, 124,545.16 and 52,549.52

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Solution

The fourth proportional to 90,250, 124,545.16 and 52,549.52 is: 72,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,250 : 124,545.16 = 52,549.52 : x
  2. Step 2: Convert to fraction form
    90,250/124,545.16 = 52,549.52/x
  3. Step 3: Cross multiply
    90,250x = 124,545.16 × 52,549.52
  4. Step 4: Simplify right side
    90,250x = 6,544,788,376.32
  5. Step 5: Solve for x
    x = 6,544,788,376.32/90,250
  6. Step 6: Final answer
    x = 72,518.43

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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.