Home / 52,136.85-71,921.12-31,725.15

Finding the Fourth Proportional to 52,136.85, 71,921.12 and 31,725.15

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Solution

The fourth proportional to 52,136.85, 71,921.12 and 31,725.15 is: 43,763.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.85 : 71,921.12 = 31,725.15 : x
  2. Step 2: Convert to fraction form
    52,136.85/71,921.12 = 31,725.15/x
  3. Step 3: Cross multiply
    52,136.85x = 71,921.12 × 31,725.15
  4. Step 4: Simplify right side
    52,136.85x = 2,281,708,161.54
  5. Step 5: Solve for x
    x = 2,281,708,161.54/52,136.85
  6. Step 6: Final answer
    x = 43,763.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.