Home / 52,062.97-78,078.28-18,778.71

Finding the Fourth Proportional to 52,062.97, 78,078.28 and 18,778.71

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Solution

The fourth proportional to 52,062.97, 78,078.28 and 18,778.71 is: 28,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,062.97 : 78,078.28 = 18,778.71 : x
  2. Step 2: Convert to fraction form
    52,062.97/78,078.28 = 18,778.71/x
  3. Step 3: Cross multiply
    52,062.97x = 78,078.28 × 18,778.71
  4. Step 4: Simplify right side
    52,062.97x = 1,466,209,377.42
  5. Step 5: Solve for x
    x = 1,466,209,377.42/52,062.97
  6. Step 6: Final answer
    x = 28,162.23

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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.