Home / 55,439.47-83,167.42-20,376.39

Finding the Fourth Proportional to 55,439.47, 83,167.42 and 20,376.39

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Solution

The fourth proportional to 55,439.47, 83,167.42 and 20,376.39 is: 30,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,439.47 : 83,167.42 = 20,376.39 : x
  2. Step 2: Convert to fraction form
    55,439.47/83,167.42 = 20,376.39/x
  3. Step 3: Cross multiply
    55,439.47x = 83,167.42 × 20,376.39
  4. Step 4: Simplify right side
    55,439.47x = 1,694,651,785.21
  5. Step 5: Solve for x
    x = 1,694,651,785.21/55,439.47
  6. Step 6: Final answer
    x = 30,567.60

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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.