Home / 72,753.14-109,170.62-28,382.96

Finding the Fourth Proportional to 72,753.14, 109,170.62 and 28,382.96

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Solution

The fourth proportional to 72,753.14, 109,170.62 and 28,382.96 is: 42,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,753.14 : 109,170.62 = 28,382.96 : x
  2. Step 2: Convert to fraction form
    72,753.14/109,170.62 = 28,382.96/x
  3. Step 3: Cross multiply
    72,753.14x = 109,170.62 × 28,382.96
  4. Step 4: Simplify right side
    72,753.14x = 3,098,584,652.87
  5. Step 5: Solve for x
    x = 3,098,584,652.87/72,753.14
  6. Step 6: Final answer
    x = 42,590.39

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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.