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Finding the Fourth Proportional to 86,884, 130,327.52 and 34,293.12

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Solution

The fourth proportional to 86,884, 130,327.52 and 34,293.12 is: 51,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,884 : 130,327.52 = 34,293.12 : x
  2. Step 2: Convert to fraction form
    86,884/130,327.52 = 34,293.12/x
  3. Step 3: Cross multiply
    86,884x = 130,327.52 × 34,293.12
  4. Step 4: Simplify right side
    86,884x = 4,469,337,282.66
  5. Step 5: Solve for x
    x = 4,469,337,282.66/86,884
  6. Step 6: Final answer
    x = 51,440.28

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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.