Home / 71,725.10-107,587.64-21,805.61

Finding the Fourth Proportional to 71,725.10, 107,587.64 and 21,805.61

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Solution

The fourth proportional to 71,725.10, 107,587.64 and 21,805.61 is: 32,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,725.10 : 107,587.64 = 21,805.61 : x
  2. Step 2: Convert to fraction form
    71,725.10/107,587.64 = 21,805.61/x
  3. Step 3: Cross multiply
    71,725.10x = 107,587.64 × 21,805.61
  4. Step 4: Simplify right side
    71,725.10x = 2,346,013,635.24
  5. Step 5: Solve for x
    x = 2,346,013,635.24/71,725.10
  6. Step 6: Final answer
    x = 32,708.41

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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.