Home / 80,835.43-121,200.33-38,714.14

Finding the Fourth Proportional to 80,835.43, 121,200.33 and 38,714.14

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Solution

The fourth proportional to 80,835.43, 121,200.33 and 38,714.14 is: 58,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,835.43 : 121,200.33 = 38,714.14 : x
  2. Step 2: Convert to fraction form
    80,835.43/121,200.33 = 38,714.14/x
  3. Step 3: Cross multiply
    80,835.43x = 121,200.33 × 38,714.14
  4. Step 4: Simplify right side
    80,835.43x = 4,692,165,937.66
  5. Step 5: Solve for x
    x = 4,692,165,937.66/80,835.43
  6. Step 6: Final answer
    x = 58,045.91

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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.