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Finding the Fourth Proportional to 68,737.50, 94,843.35 and 40,446.30

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Solution

The fourth proportional to 68,737.50, 94,843.35 and 40,446.30 is: 55,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,737.50 : 94,843.35 = 40,446.30 : x
  2. Step 2: Convert to fraction form
    68,737.50/94,843.35 = 40,446.30/x
  3. Step 3: Cross multiply
    68,737.50x = 94,843.35 × 40,446.30
  4. Step 4: Simplify right side
    68,737.50x = 3,836,062,587.11
  5. Step 5: Solve for x
    x = 3,836,062,587.11/68,737.50
  6. Step 6: Final answer
    x = 55,807.42

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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.