Home / 80,836.18-121,201.46-38,714.89

Finding the Fourth Proportional to 80,836.18, 121,201.46 and 38,714.89

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Solution

The fourth proportional to 80,836.18, 121,201.46 and 38,714.89 is: 58,047.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,836.18 : 121,201.46 = 38,714.89 : x
  2. Step 2: Convert to fraction form
    80,836.18/121,201.46 = 38,714.89/x
  3. Step 3: Cross multiply
    80,836.18x = 121,201.46 × 38,714.89
  4. Step 4: Simplify right side
    80,836.18x = 4,692,300,392.16
  5. Step 5: Solve for x
    x = 4,692,300,392.16/80,836.18
  6. Step 6: Final answer
    x = 58,047.04

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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.