Home / 84,098.20-126,147.30-57,722.98

Finding the Fourth Proportional to 84,098.20, 126,147.30 and 57,722.98

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Solution

The fourth proportional to 84,098.20, 126,147.30 and 57,722.98 is: 86,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,098.20 : 126,147.30 = 57,722.98 : x
  2. Step 2: Convert to fraction form
    84,098.20/126,147.30 = 57,722.98/x
  3. Step 3: Cross multiply
    84,098.20x = 126,147.30 × 57,722.98
  4. Step 4: Simplify right side
    84,098.20x = 7,281,598,340.87
  5. Step 5: Solve for x
    x = 7,281,598,340.87/84,098.20
  6. Step 6: Final answer
    x = 86,584.47

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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.