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Finding the Fourth Proportional to 81,597.82, 112,574.02 and 60,138.79

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Solution

The fourth proportional to 81,597.82, 112,574.02 and 60,138.79 is: 82,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,597.82 : 112,574.02 = 60,138.79 : x
  2. Step 2: Convert to fraction form
    81,597.82/112,574.02 = 60,138.79/x
  3. Step 3: Cross multiply
    81,597.82x = 112,574.02 × 60,138.79
  4. Step 4: Simplify right side
    81,597.82x = 6,770,065,348.24
  5. Step 5: Solve for x
    x = 6,770,065,348.24/81,597.82
  6. Step 6: Final answer
    x = 82,968.70

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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.