Home / 54,521.10-81,781.65-28,233.90

Finding the Fourth Proportional to 54,521.10, 81,781.65 and 28,233.90

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Solution

The fourth proportional to 54,521.10, 81,781.65 and 28,233.90 is: 42,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,521.10 : 81,781.65 = 28,233.90 : x
  2. Step 2: Convert to fraction form
    54,521.10/81,781.65 = 28,233.90/x
  3. Step 3: Cross multiply
    54,521.10x = 81,781.65 × 28,233.90
  4. Step 4: Simplify right side
    54,521.10x = 2,309,014,927.94
  5. Step 5: Solve for x
    x = 2,309,014,927.94/54,521.10
  6. Step 6: Final answer
    x = 42,350.85

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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.