Home / 55,139.28-82,708.92-13,586.28

Finding the Fourth Proportional to 55,139.28, 82,708.92 and 13,586.28

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Solution

The fourth proportional to 55,139.28, 82,708.92 and 13,586.28 is: 20,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,139.28 : 82,708.92 = 13,586.28 : x
  2. Step 2: Convert to fraction form
    55,139.28/82,708.92 = 13,586.28/x
  3. Step 3: Cross multiply
    55,139.28x = 82,708.92 × 13,586.28
  4. Step 4: Simplify right side
    55,139.28x = 1,123,706,545.62
  5. Step 5: Solve for x
    x = 1,123,706,545.62/55,139.28
  6. Step 6: Final answer
    x = 20,379.42

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1.5x scale

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.