Home / 55,287.53-82,882.18-21,545.74

Finding the Fourth Proportional to 55,287.53, 82,882.18 and 21,545.74

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Solution

The fourth proportional to 55,287.53, 82,882.18 and 21,545.74 is: 32,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,287.53 : 82,882.18 = 21,545.74 : x
  2. Step 2: Convert to fraction form
    55,287.53/82,882.18 = 21,545.74/x
  3. Step 3: Cross multiply
    55,287.53x = 82,882.18 × 21,545.74
  4. Step 4: Simplify right side
    55,287.53x = 1,785,757,900.91
  5. Step 5: Solve for x
    x = 1,785,757,900.91/55,287.53
  6. Step 6: Final answer
    x = 32,299.47

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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.