Home / 84,098.30-126,147.45-57,723.08

Finding the Fourth Proportional to 84,098.30, 126,147.45 and 57,723.08

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Solution

The fourth proportional to 84,098.30, 126,147.45 and 57,723.08 is: 86,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,098.30 : 126,147.45 = 57,723.08 : x
  2. Step 2: Convert to fraction form
    84,098.30/126,147.45 = 57,723.08/x
  3. Step 3: Cross multiply
    84,098.30x = 126,147.45 × 57,723.08
  4. Step 4: Simplify right side
    84,098.30x = 7,281,619,348.15
  5. Step 5: Solve for x
    x = 7,281,619,348.15/84,098.30
  6. Step 6: Final answer
    x = 86,584.62

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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.