Home / 92,281.20-138,304.08-47,821.92

Finding the Fourth Proportional to 92,281.20, 138,304.08 and 47,821.92

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Solution

The fourth proportional to 92,281.20, 138,304.08 and 47,821.92 is: 71,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,281.20 : 138,304.08 = 47,821.92 : x
  2. Step 2: Convert to fraction form
    92,281.20/138,304.08 = 47,821.92/x
  3. Step 3: Cross multiply
    92,281.20x = 138,304.08 × 47,821.92
  4. Step 4: Simplify right side
    92,281.20x = 6,613,966,649.43
  5. Step 5: Solve for x
    x = 6,613,966,649.43/92,281.20
  6. Step 6: Final answer
    x = 71,671.88

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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.