Home / 87,896.52-121,297.32-47,610.72

Finding the Fourth Proportional to 87,896.52, 121,297.32 and 47,610.72

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Solution

The fourth proportional to 87,896.52, 121,297.32 and 47,610.72 is: 65,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,896.52 : 121,297.32 = 47,610.72 : x
  2. Step 2: Convert to fraction form
    87,896.52/121,297.32 = 47,610.72/x
  3. Step 3: Cross multiply
    87,896.52x = 121,297.32 × 47,610.72
  4. Step 4: Simplify right side
    87,896.52x = 5,775,052,739.27
  5. Step 5: Solve for x
    x = 5,775,052,739.27/87,896.52
  6. Step 6: Final answer
    x = 65,702.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.