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Finding the Fourth Proportional to 68,996.80, 103,468.40 and 26,870.88

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Solution

The fourth proportional to 68,996.80, 103,468.40 and 26,870.88 is: 40,295.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,996.80 : 103,468.40 = 26,870.88 : x
  2. Step 2: Convert to fraction form
    68,996.80/103,468.40 = 26,870.88/x
  3. Step 3: Cross multiply
    68,996.80x = 103,468.40 × 26,870.88
  4. Step 4: Simplify right side
    68,996.80x = 2,780,286,960.19
  5. Step 5: Solve for x
    x = 2,780,286,960.19/68,996.80
  6. Step 6: Final answer
    x = 40,295.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.