Home / 52,581.20-78,871.80-15,645.20

Finding the Fourth Proportional to 52,581.20, 78,871.80 and 15,645.20

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Solution

The fourth proportional to 52,581.20, 78,871.80 and 15,645.20 is: 23,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,581.20 : 78,871.80 = 15,645.20 : x
  2. Step 2: Convert to fraction form
    52,581.20/78,871.80 = 15,645.20/x
  3. Step 3: Cross multiply
    52,581.20x = 78,871.80 × 15,645.20
  4. Step 4: Simplify right side
    52,581.20x = 1,233,964,691.00
  5. Step 5: Solve for x
    x = 1,233,964,691.00/52,581.20
  6. Step 6: Final answer
    x = 23,467.79

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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.