Home / 86,374.24-129,482.41-73,132.55

Finding the Fourth Proportional to 86,374.24, 129,482.41 and 73,132.55

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Solution

The fourth proportional to 86,374.24, 129,482.41 and 73,132.55 is: 109,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,374.24 : 129,482.41 = 73,132.55 : x
  2. Step 2: Convert to fraction form
    86,374.24/129,482.41 = 73,132.55/x
  3. Step 3: Cross multiply
    86,374.24x = 129,482.41 × 73,132.55
  4. Step 4: Simplify right side
    86,374.24x = 9,469,377,993.20
  5. Step 5: Solve for x
    x = 9,469,377,993.20/86,374.24
  6. Step 6: Final answer
    x = 109,631.97

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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.