Home / 47,909.80-71,531.69-40,364.20

Finding the Fourth Proportional to 47,909.80, 71,531.69 and 40,364.20

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Solution

The fourth proportional to 47,909.80, 71,531.69 and 40,364.20 is: 60,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.80 : 71,531.69 = 40,364.20 : x
  2. Step 2: Convert to fraction form
    47,909.80/71,531.69 = 40,364.20/x
  3. Step 3: Cross multiply
    47,909.80x = 71,531.69 × 40,364.20
  4. Step 4: Simplify right side
    47,909.80x = 2,887,319,441.50
  5. Step 5: Solve for x
    x = 2,887,319,441.50/47,909.80
  6. Step 6: Final answer
    x = 60,265.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.