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Finding the Fourth Proportional to 71,849.64, 108,017.76 and 57,907.52

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Solution

The fourth proportional to 71,849.64, 108,017.76 and 57,907.52 is: 87,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,849.64 : 108,017.76 = 57,907.52 : x
  2. Step 2: Convert to fraction form
    71,849.64/108,017.76 = 57,907.52/x
  3. Step 3: Cross multiply
    71,849.64x = 108,017.76 × 57,907.52
  4. Step 4: Simplify right side
    71,849.64x = 6,255,040,597.56
  5. Step 5: Solve for x
    x = 6,255,040,597.56/71,849.64
  6. Step 6: Final answer
    x = 87,057.37

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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.