Home / 55,248.20-82,872.30-13,695.20

Finding the Fourth Proportional to 55,248.20, 82,872.30 and 13,695.20

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Solution

The fourth proportional to 55,248.20, 82,872.30 and 13,695.20 is: 20,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,248.20 : 82,872.30 = 13,695.20 : x
  2. Step 2: Convert to fraction form
    55,248.20/82,872.30 = 13,695.20/x
  3. Step 3: Cross multiply
    55,248.20x = 82,872.30 × 13,695.20
  4. Step 4: Simplify right side
    55,248.20x = 1,134,952,722.96
  5. Step 5: Solve for x
    x = 1,134,952,722.96/55,248.20
  6. Step 6: Final answer
    x = 20,542.80

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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.