Home / 78,350.78-108,113.19-46,086.86

Finding the Fourth Proportional to 78,350.78, 108,113.19 and 46,086.86

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Solution

The fourth proportional to 78,350.78, 108,113.19 and 46,086.86 is: 63,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,350.78 : 108,113.19 = 46,086.86 : x
  2. Step 2: Convert to fraction form
    78,350.78/108,113.19 = 46,086.86/x
  3. Step 3: Cross multiply
    78,350.78x = 108,113.19 × 46,086.86
  4. Step 4: Simplify right side
    78,350.78x = 4,982,597,451.68
  5. Step 5: Solve for x
    x = 4,982,597,451.68/78,350.78
  6. Step 6: Final answer
    x = 63,593.46

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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.