Home / 86,114.38-129,200.73-38,724.52

Finding the Fourth Proportional to 86,114.38, 129,200.73 and 38,724.52

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Solution

The fourth proportional to 86,114.38, 129,200.73 and 38,724.52 is: 58,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,114.38 : 129,200.73 = 38,724.52 : x
  2. Step 2: Convert to fraction form
    86,114.38/129,200.73 = 38,724.52/x
  3. Step 3: Cross multiply
    86,114.38x = 129,200.73 × 38,724.52
  4. Step 4: Simplify right side
    86,114.38x = 5,003,236,252.90
  5. Step 5: Solve for x
    x = 5,003,236,252.90/86,114.38
  6. Step 6: Final answer
    x = 58,099.89

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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.