Home / 87,733.86-121,065.36-51,917.64

Finding the Fourth Proportional to 87,733.86, 121,065.36 and 51,917.64

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Solution

The fourth proportional to 87,733.86, 121,065.36 and 51,917.64 is: 71,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,733.86 : 121,065.36 = 51,917.64 : x
  2. Step 2: Convert to fraction form
    87,733.86/121,065.36 = 51,917.64/x
  3. Step 3: Cross multiply
    87,733.86x = 121,065.36 × 51,917.64
  4. Step 4: Simplify right side
    87,733.86x = 6,285,427,776.95
  5. Step 5: Solve for x
    x = 6,285,427,776.95/87,733.86
  6. Step 6: Final answer
    x = 71,641.98

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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.