Home / 71,398.24-107,126.73-31,396.64

Finding the Fourth Proportional to 71,398.24, 107,126.73 and 31,396.64

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Solution

The fourth proportional to 71,398.24, 107,126.73 and 31,396.64 is: 47,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,398.24 : 107,126.73 = 31,396.64 : x
  2. Step 2: Convert to fraction form
    71,398.24/107,126.73 = 31,396.64/x
  3. Step 3: Cross multiply
    71,398.24x = 107,126.73 × 31,396.64
  4. Step 4: Simplify right side
    71,398.24x = 3,363,418,840.55
  5. Step 5: Solve for x
    x = 3,363,418,840.55/71,398.24
  6. Step 6: Final answer
    x = 47,107.87

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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.