Home / 71,557.32-107,373.78-51,997.56

Finding the Fourth Proportional to 71,557.32, 107,373.78 and 51,997.56

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Solution

The fourth proportional to 71,557.32, 107,373.78 and 51,997.56 is: 78,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,557.32 : 107,373.78 = 51,997.56 : x
  2. Step 2: Convert to fraction form
    71,557.32/107,373.78 = 51,997.56/x
  3. Step 3: Cross multiply
    71,557.32x = 107,373.78 × 51,997.56
  4. Step 4: Simplify right side
    71,557.32x = 5,583,174,567.98
  5. Step 5: Solve for x
    x = 5,583,174,567.98/71,557.32
  6. Step 6: Final answer
    x = 78,023.81

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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.