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Finding the Fourth Proportional to 85,597.66, 127,769.35 and 75,497.56

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Solution

The fourth proportional to 85,597.66, 127,769.35 and 75,497.56 is: 112,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.66 : 127,769.35 = 75,497.56 : x
  2. Step 2: Convert to fraction form
    85,597.66/127,769.35 = 75,497.56/x
  3. Step 3: Cross multiply
    85,597.66x = 127,769.35 × 75,497.56
  4. Step 4: Simplify right side
    85,597.66x = 9,646,273,790.30
  5. Step 5: Solve for x
    x = 9,646,273,790.30/85,597.66
  6. Step 6: Final answer
    x = 112,693.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.