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Finding the Fourth Proportional to 85,084.88, 127,542.76 and 40,659.76

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Solution

The fourth proportional to 85,084.88, 127,542.76 and 40,659.76 is: 60,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,084.88 : 127,542.76 = 40,659.76 : x
  2. Step 2: Convert to fraction form
    85,084.88/127,542.76 = 40,659.76/x
  3. Step 3: Cross multiply
    85,084.88x = 127,542.76 × 40,659.76
  4. Step 4: Simplify right side
    85,084.88x = 5,185,858,011.34
  5. Step 5: Solve for x
    x = 5,185,858,011.34/85,084.88
  6. Step 6: Final answer
    x = 60,949.23

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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.