Home / 71,198.86-98,257.50-39,367.75

Finding the Fourth Proportional to 71,198.86, 98,257.50 and 39,367.75

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Solution

The fourth proportional to 71,198.86, 98,257.50 and 39,367.75 is: 54,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,198.86 : 98,257.50 = 39,367.75 : x
  2. Step 2: Convert to fraction form
    71,198.86/98,257.50 = 39,367.75/x
  3. Step 3: Cross multiply
    71,198.86x = 98,257.50 × 39,367.75
  4. Step 4: Simplify right side
    71,198.86x = 3,868,176,498.79
  5. Step 5: Solve for x
    x = 3,868,176,498.79/71,198.86
  6. Step 6: Final answer
    x = 54,329.20

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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.