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Finding the Fourth Proportional to 86,565.92, 129,865.72 and 33,254

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Solution

The fourth proportional to 86,565.92, 129,865.72 and 33,254 is: 49,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565.92 : 129,865.72 = 33,254 : x
  2. Step 2: Convert to fraction form
    86,565.92/129,865.72 = 33,254/x
  3. Step 3: Cross multiply
    86,565.92x = 129,865.72 × 33,254
  4. Step 4: Simplify right side
    86,565.92x = 4,318,554,652.88
  5. Step 5: Solve for x
    x = 4,318,554,652.88/86,565.92
  6. Step 6: Final answer
    x = 49,887.47

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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.