Home / 87,062.20-120,103.14-56,833.54

Finding the Fourth Proportional to 87,062.20, 120,103.14 and 56,833.54

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Solution

The fourth proportional to 87,062.20, 120,103.14 and 56,833.54 is: 78,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,062.20 : 120,103.14 = 56,833.54 : x
  2. Step 2: Convert to fraction form
    87,062.20/120,103.14 = 56,833.54/x
  3. Step 3: Cross multiply
    87,062.20x = 120,103.14 × 56,833.54
  4. Step 4: Simplify right side
    87,062.20x = 6,825,886,611.32
  5. Step 5: Solve for x
    x = 6,825,886,611.32/87,062.20
  6. Step 6: Final answer
    x = 78,402.41

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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.