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Finding the Fourth Proportional to 86,612.95, 129,923.07 and 27,450.96

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Solution

The fourth proportional to 86,612.95, 129,923.07 and 27,450.96 is: 41,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,612.95 : 129,923.07 = 27,450.96 : x
  2. Step 2: Convert to fraction form
    86,612.95/129,923.07 = 27,450.96/x
  3. Step 3: Cross multiply
    86,612.95x = 129,923.07 × 27,450.96
  4. Step 4: Simplify right side
    86,612.95x = 3,566,512,997.65
  5. Step 5: Solve for x
    x = 3,566,512,997.65/86,612.95
  6. Step 6: Final answer
    x = 41,177.60

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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.