Home / 76,171.02-114,267.17-31,787.61

Finding the Fourth Proportional to 76,171.02, 114,267.17 and 31,787.61

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Solution

The fourth proportional to 76,171.02, 114,267.17 and 31,787.61 is: 47,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,171.02 : 114,267.17 = 31,787.61 : x
  2. Step 2: Convert to fraction form
    76,171.02/114,267.17 = 31,787.61/x
  3. Step 3: Cross multiply
    76,171.02x = 114,267.17 × 31,787.61
  4. Step 4: Simplify right side
    76,171.02x = 3,632,279,505.49
  5. Step 5: Solve for x
    x = 3,632,279,505.49/76,171.02
  6. Step 6: Final answer
    x = 47,685.85

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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.