Home / 92,174.97-138,305.75-47,777.61

Finding the Fourth Proportional to 92,174.97, 138,305.75 and 47,777.61

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Solution

The fourth proportional to 92,174.97, 138,305.75 and 47,777.61 is: 71,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,174.97 : 138,305.75 = 47,777.61 : x
  2. Step 2: Convert to fraction form
    92,174.97/138,305.75 = 47,777.61/x
  3. Step 3: Cross multiply
    92,174.97x = 138,305.75 × 47,777.61
  4. Step 4: Simplify right side
    92,174.97x = 6,607,917,945.37
  5. Step 5: Solve for x
    x = 6,607,917,945.37/92,174.97
  6. Step 6: Final answer
    x = 71,688.85

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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.