Home / 83,379.22-115,062.40-45,137.86

Finding the Fourth Proportional to 83,379.22, 115,062.40 and 45,137.86

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Solution

The fourth proportional to 83,379.22, 115,062.40 and 45,137.86 is: 62,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,379.22 : 115,062.40 = 45,137.86 : x
  2. Step 2: Convert to fraction form
    83,379.22/115,062.40 = 45,137.86/x
  3. Step 3: Cross multiply
    83,379.22x = 115,062.40 × 45,137.86
  4. Step 4: Simplify right side
    83,379.22x = 5,193,670,144.28
  5. Step 5: Solve for x
    x = 5,193,670,144.28/83,379.22
  6. Step 6: Final answer
    x = 62,289.74

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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.