Home / 77,478.43-116,279.91-40,049.47

Finding the Fourth Proportional to 77,478.43, 116,279.91 and 40,049.47

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Solution

The fourth proportional to 77,478.43, 116,279.91 and 40,049.47 is: 60,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478.43 : 116,279.91 = 40,049.47 : x
  2. Step 2: Convert to fraction form
    77,478.43/116,279.91 = 40,049.47/x
  3. Step 3: Cross multiply
    77,478.43x = 116,279.91 × 40,049.47
  4. Step 4: Simplify right side
    77,478.43x = 4,656,948,476.45
  5. Step 5: Solve for x
    x = 4,656,948,476.45/77,478.43
  6. Step 6: Final answer
    x = 60,106.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.