Home / 77,102.78-115,593.22-50,613.76

Finding the Fourth Proportional to 77,102.78, 115,593.22 and 50,613.76

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Solution

The fourth proportional to 77,102.78, 115,593.22 and 50,613.76 is: 75,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,102.78 : 115,593.22 = 50,613.76 : x
  2. Step 2: Convert to fraction form
    77,102.78/115,593.22 = 50,613.76/x
  3. Step 3: Cross multiply
    77,102.78x = 115,593.22 × 50,613.76
  4. Step 4: Simplify right side
    77,102.78x = 5,850,606,663.67
  5. Step 5: Solve for x
    x = 5,850,606,663.67/77,102.78
  6. Step 6: Final answer
    x = 75,880.62

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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.