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Finding the Fourth Proportional to 68,600.32, 94,668.80 and 38,385.70

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Solution

The fourth proportional to 68,600.32, 94,668.80 and 38,385.70 is: 52,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,600.32 : 94,668.80 = 38,385.70 : x
  2. Step 2: Convert to fraction form
    68,600.32/94,668.80 = 38,385.70/x
  3. Step 3: Cross multiply
    68,600.32x = 94,668.80 × 38,385.70
  4. Step 4: Simplify right side
    68,600.32x = 3,633,928,156.16
  5. Step 5: Solve for x
    x = 3,633,928,156.16/68,600.32
  6. Step 6: Final answer
    x = 52,972.47

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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.