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Finding the Fourth Proportional to 80,569.92, 120,813.36 and 36,158.58

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Solution

The fourth proportional to 80,569.92, 120,813.36 and 36,158.58 is: 54,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569.92 : 120,813.36 = 36,158.58 : x
  2. Step 2: Convert to fraction form
    80,569.92/120,813.36 = 36,158.58/x
  3. Step 3: Cross multiply
    80,569.92x = 120,813.36 × 36,158.58
  4. Step 4: Simplify right side
    80,569.92x = 4,368,439,542.63
  5. Step 5: Solve for x
    x = 4,368,439,542.63/80,569.92
  6. Step 6: Final answer
    x = 54,219.24

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1.5x scale

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.