Home / 87,932.12-121,345.90-47,645.85

Finding the Fourth Proportional to 87,932.12, 121,345.90 and 47,645.85

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Solution

The fourth proportional to 87,932.12, 121,345.90 and 47,645.85 is: 65,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.12 : 121,345.90 = 47,645.85 : x
  2. Step 2: Convert to fraction form
    87,932.12/121,345.90 = 47,645.85/x
  3. Step 3: Cross multiply
    87,932.12x = 121,345.90 × 47,645.85
  4. Step 4: Simplify right side
    87,932.12x = 5,781,628,885.45
  5. Step 5: Solve for x
    x = 5,781,628,885.45/87,932.12
  6. Step 6: Final answer
    x = 65,751.05

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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.