Home / 80,345.60-120,526.38-29,758.16

Finding the Fourth Proportional to 80,345.60, 120,526.38 and 29,758.16

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Solution

The fourth proportional to 80,345.60, 120,526.38 and 29,758.16 is: 44,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,345.60 : 120,526.38 = 29,758.16 : x
  2. Step 2: Convert to fraction form
    80,345.60/120,526.38 = 29,758.16/x
  3. Step 3: Cross multiply
    80,345.60x = 120,526.38 × 29,758.16
  4. Step 4: Simplify right side
    80,345.60x = 3,586,643,601.58
  5. Step 5: Solve for x
    x = 3,586,643,601.58/80,345.60
  6. Step 6: Final answer
    x = 44,640.20

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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.