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Finding the Fourth Proportional to 86,224.64, 129,369.02 and 38,825.46

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Solution

The fourth proportional to 86,224.64, 129,369.02 and 38,825.46 is: 58,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,224.64 : 129,369.02 = 38,825.46 : x
  2. Step 2: Convert to fraction form
    86,224.64/129,369.02 = 38,825.46/x
  3. Step 3: Cross multiply
    86,224.64x = 129,369.02 × 38,825.46
  4. Step 4: Simplify right side
    86,224.64x = 5,022,811,517.12
  5. Step 5: Solve for x
    x = 5,022,811,517.12/86,224.64
  6. Step 6: Final answer
    x = 58,252.63

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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.