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Finding the Fourth Proportional to 86,527.92, 129,807.90 and 27,378.48

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Solution

The fourth proportional to 86,527.92, 129,807.90 and 27,378.48 is: 41,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,527.92 : 129,807.90 = 27,378.48 : x
  2. Step 2: Convert to fraction form
    86,527.92/129,807.90 = 27,378.48/x
  3. Step 3: Cross multiply
    86,527.92x = 129,807.90 × 27,378.48
  4. Step 4: Simplify right side
    86,527.92x = 3,553,942,993.99
  5. Step 5: Solve for x
    x = 3,553,942,993.99/86,527.92
  6. Step 6: Final answer
    x = 41,072.79

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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.