Home / 67,217.16-92,772.72-38,553.78

Finding the Fourth Proportional to 67,217.16, 92,772.72 and 38,553.78

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Solution

The fourth proportional to 67,217.16, 92,772.72 and 38,553.78 is: 53,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,217.16 : 92,772.72 = 38,553.78 : x
  2. Step 2: Convert to fraction form
    67,217.16/92,772.72 = 38,553.78/x
  3. Step 3: Cross multiply
    67,217.16x = 92,772.72 × 38,553.78
  4. Step 4: Simplify right side
    67,217.16x = 3,576,739,036.88
  5. Step 5: Solve for x
    x = 3,576,739,036.88/67,217.16
  6. Step 6: Final answer
    x = 53,211.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.