Home / 78,663.38-108,556.21-44,672.57

Finding the Fourth Proportional to 78,663.38, 108,556.21 and 44,672.57

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Solution

The fourth proportional to 78,663.38, 108,556.21 and 44,672.57 is: 61,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,663.38 : 108,556.21 = 44,672.57 : x
  2. Step 2: Convert to fraction form
    78,663.38/108,556.21 = 44,672.57/x
  3. Step 3: Cross multiply
    78,663.38x = 108,556.21 × 44,672.57
  4. Step 4: Simplify right side
    78,663.38x = 4,849,485,049.87
  5. Step 5: Solve for x
    x = 4,849,485,049.87/78,663.38
  6. Step 6: Final answer
    x = 61,648.58

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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.