Home / 87,777.92-121,135.30-51,954.86

Finding the Fourth Proportional to 87,777.92, 121,135.30 and 51,954.86

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Solution

The fourth proportional to 87,777.92, 121,135.30 and 51,954.86 is: 71,698.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,777.92 : 121,135.30 = 51,954.86 : x
  2. Step 2: Convert to fraction form
    87,777.92/121,135.30 = 51,954.86/x
  3. Step 3: Cross multiply
    87,777.92x = 121,135.30 × 51,954.86
  4. Step 4: Simplify right side
    87,777.92x = 6,293,567,552.56
  5. Step 5: Solve for x
    x = 6,293,567,552.56/87,777.92
  6. Step 6: Final answer
    x = 71,698.75

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1.5x scale

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.