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Finding the Fourth Proportional to 84,996.12, 127,494 and 40,487.88

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Solution

The fourth proportional to 84,996.12, 127,494 and 40,487.88 is: 60,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,996.12 : 127,494 = 40,487.88 : x
  2. Step 2: Convert to fraction form
    84,996.12/127,494 = 40,487.88/x
  3. Step 3: Cross multiply
    84,996.12x = 127,494 × 40,487.88
  4. Step 4: Simplify right side
    84,996.12x = 5,161,961,772.72
  5. Step 5: Solve for x
    x = 5,161,961,772.72/84,996.12
  6. Step 6: Final answer
    x = 60,731.73

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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.