Home / 66,868.12-92,255.22-38,167.20

Finding the Fourth Proportional to 66,868.12, 92,255.22 and 38,167.20

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Solution

The fourth proportional to 66,868.12, 92,255.22 and 38,167.20 is: 52,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,868.12 : 92,255.22 = 38,167.20 : x
  2. Step 2: Convert to fraction form
    66,868.12/92,255.22 = 38,167.20/x
  3. Step 3: Cross multiply
    66,868.12x = 92,255.22 × 38,167.20
  4. Step 4: Simplify right side
    66,868.12x = 3,521,123,432.78
  5. Step 5: Solve for x
    x = 3,521,123,432.78/66,868.12
  6. Step 6: Final answer
    x = 52,657.73

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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.