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Finding the Fourth Proportional to 81,596.82, 112,572.64 and 60,137.79

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Solution

The fourth proportional to 81,596.82, 112,572.64 and 60,137.79 is: 82,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,596.82 : 112,572.64 = 60,137.79 : x
  2. Step 2: Convert to fraction form
    81,596.82/112,572.64 = 60,137.79/x
  3. Step 3: Cross multiply
    81,596.82x = 112,572.64 × 60,137.79
  4. Step 4: Simplify right side
    81,596.82x = 6,769,869,732.04
  5. Step 5: Solve for x
    x = 6,769,869,732.04/81,596.82
  6. Step 6: Final answer
    x = 82,967.33

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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.