Home / 83,927.03-126,349.97-76,578.71

Finding the Fourth Proportional to 83,927.03, 126,349.97 and 76,578.71

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Solution

The fourth proportional to 83,927.03, 126,349.97 and 76,578.71 is: 115,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.03 : 126,349.97 = 76,578.71 : x
  2. Step 2: Convert to fraction form
    83,927.03/126,349.97 = 76,578.71/x
  3. Step 3: Cross multiply
    83,927.03x = 126,349.97 × 76,578.71
  4. Step 4: Simplify right side
    83,927.03x = 9,675,716,696.50
  5. Step 5: Solve for x
    x = 9,675,716,696.50/83,927.03
  6. Step 6: Final answer
    x = 115,287.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.