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Finding the Fourth Proportional to 60,479.20, 90,733.20 and 25,400.80

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Solution

The fourth proportional to 60,479.20, 90,733.20 and 25,400.80 is: 38,107.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,479.20 : 90,733.20 = 25,400.80 : x
  2. Step 2: Convert to fraction form
    60,479.20/90,733.20 = 25,400.80/x
  3. Step 3: Cross multiply
    60,479.20x = 90,733.20 × 25,400.80
  4. Step 4: Simplify right side
    60,479.20x = 2,304,695,866.56
  5. Step 5: Solve for x
    x = 2,304,695,866.56/60,479.20
  6. Step 6: Final answer
    x = 38,107.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.