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Finding the Fourth Proportional to 68,990.92, 95,206.18 and 38,365.88

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Solution

The fourth proportional to 68,990.92, 95,206.18 and 38,365.88 is: 52,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,990.92 : 95,206.18 = 38,365.88 : x
  2. Step 2: Convert to fraction form
    68,990.92/95,206.18 = 38,365.88/x
  3. Step 3: Cross multiply
    68,990.92x = 95,206.18 × 38,365.88
  4. Step 4: Simplify right side
    68,990.92x = 3,652,668,877.14
  5. Step 5: Solve for x
    x = 3,652,668,877.14/68,990.92
  6. Step 6: Final answer
    x = 52,944.20

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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.