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Finding the Fourth Proportional to 68,146.95, 94,023.92 and 40,915.97

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Solution

The fourth proportional to 68,146.95, 94,023.92 and 40,915.97 is: 56,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.95 : 94,023.92 = 40,915.97 : x
  2. Step 2: Convert to fraction form
    68,146.95/94,023.92 = 40,915.97/x
  3. Step 3: Cross multiply
    68,146.95x = 94,023.92 × 40,915.97
  4. Step 4: Simplify right side
    68,146.95x = 3,847,079,215.30
  5. Step 5: Solve for x
    x = 3,847,079,215.30/68,146.95
  6. Step 6: Final answer
    x = 56,452.70

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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.