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Finding the Fourth Proportional to 87,304.25, 120,479.88 and 47,560.25

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Solution

The fourth proportional to 87,304.25, 120,479.88 and 47,560.25 is: 65,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,304.25 : 120,479.88 = 47,560.25 : x
  2. Step 2: Convert to fraction form
    87,304.25/120,479.88 = 47,560.25/x
  3. Step 3: Cross multiply
    87,304.25x = 120,479.88 × 47,560.25
  4. Step 4: Simplify right side
    87,304.25x = 5,730,053,212.77
  5. Step 5: Solve for x
    x = 5,730,053,212.77/87,304.25
  6. Step 6: Final answer
    x = 65,633.15

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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.