Home / 80,569.29-120,812.41-36,157.96

Finding the Fourth Proportional to 80,569.29, 120,812.41 and 36,157.96

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Solution

The fourth proportional to 80,569.29, 120,812.41 and 36,157.96 is: 54,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,569.29 : 120,812.41 = 36,157.96 : x
  2. Step 2: Convert to fraction form
    80,569.29/120,812.41 = 36,157.96/x
  3. Step 3: Cross multiply
    80,569.29x = 120,812.41 × 36,157.96
  4. Step 4: Simplify right side
    80,569.29x = 4,368,330,288.28
  5. Step 5: Solve for x
    x = 4,368,330,288.28/80,569.29
  6. Step 6: Final answer
    x = 54,218.30

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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.