Home / 79,926.85-110,339.01-49,721.95

Finding the Fourth Proportional to 79,926.85, 110,339.01 and 49,721.95

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Solution

The fourth proportional to 79,926.85, 110,339.01 and 49,721.95 is: 68,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,926.85 : 110,339.01 = 49,721.95 : x
  2. Step 2: Convert to fraction form
    79,926.85/110,339.01 = 49,721.95/x
  3. Step 3: Cross multiply
    79,926.85x = 110,339.01 × 49,721.95
  4. Step 4: Simplify right side
    79,926.85x = 5,486,270,876.19
  5. Step 5: Solve for x
    x = 5,486,270,876.19/79,926.85
  6. Step 6: Final answer
    x = 68,641.15

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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.