Home / 55,129.38-82,681.62-15,685.62

Finding the Fourth Proportional to 55,129.38, 82,681.62 and 15,685.62

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Solution

The fourth proportional to 55,129.38, 82,681.62 and 15,685.62 is: 23,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.38 : 82,681.62 = 15,685.62 : x
  2. Step 2: Convert to fraction form
    55,129.38/82,681.62 = 15,685.62/x
  3. Step 3: Cross multiply
    55,129.38x = 82,681.62 × 15,685.62
  4. Step 4: Simplify right side
    55,129.38x = 1,296,912,472.30
  5. Step 5: Solve for x
    x = 1,296,912,472.30/55,129.38
  6. Step 6: Final answer
    x = 23,524.89

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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.