Home / 79,101.12-118,470.24-51,314.88

Finding the Fourth Proportional to 79,101.12, 118,470.24 and 51,314.88

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Solution

The fourth proportional to 79,101.12, 118,470.24 and 51,314.88 is: 76,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,101.12 : 118,470.24 = 51,314.88 : x
  2. Step 2: Convert to fraction form
    79,101.12/118,470.24 = 51,314.88/x
  3. Step 3: Cross multiply
    79,101.12x = 118,470.24 × 51,314.88
  4. Step 4: Simplify right side
    79,101.12x = 6,079,286,149.17
  5. Step 5: Solve for x
    x = 6,079,286,149.17/79,101.12
  6. Step 6: Final answer
    x = 76,854.62

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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.