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Finding the Fourth Proportional to 86,644.74, 129,966.08 and 27,480.92

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Solution

The fourth proportional to 86,644.74, 129,966.08 and 27,480.92 is: 41,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,644.74 : 129,966.08 = 27,480.92 : x
  2. Step 2: Convert to fraction form
    86,644.74/129,966.08 = 27,480.92/x
  3. Step 3: Cross multiply
    86,644.74x = 129,966.08 × 27,480.92
  4. Step 4: Simplify right side
    86,644.74x = 3,571,586,659.96
  5. Step 5: Solve for x
    x = 3,571,586,659.96/86,644.74
  6. Step 6: Final answer
    x = 41,221.04

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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.