Home / 48,585.96-72,872.68-20,517.12

Finding the Fourth Proportional to 48,585.96, 72,872.68 and 20,517.12

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Solution

The fourth proportional to 48,585.96, 72,872.68 and 20,517.12 is: 30,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,585.96 : 72,872.68 = 20,517.12 : x
  2. Step 2: Convert to fraction form
    48,585.96/72,872.68 = 20,517.12/x
  3. Step 3: Cross multiply
    48,585.96x = 72,872.68 × 20,517.12
  4. Step 4: Simplify right side
    48,585.96x = 1,495,137,520.28
  5. Step 5: Solve for x
    x = 1,495,137,520.28/48,585.96
  6. Step 6: Final answer
    x = 30,773.04

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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.