Home / 55,489.62-83,242.72-20,426.61

Finding the Fourth Proportional to 55,489.62, 83,242.72 and 20,426.61

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Solution

The fourth proportional to 55,489.62, 83,242.72 and 20,426.61 is: 30,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.62 : 83,242.72 = 20,426.61 : x
  2. Step 2: Convert to fraction form
    55,489.62/83,242.72 = 20,426.61/x
  3. Step 3: Cross multiply
    55,489.62x = 83,242.72 × 20,426.61
  4. Step 4: Simplify right side
    55,489.62x = 1,700,366,525.71
  5. Step 5: Solve for x
    x = 1,700,366,525.71/55,489.62
  6. Step 6: Final answer
    x = 30,642.97

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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.