Home / 79,041.26-109,076.82-47,228.78

Finding the Fourth Proportional to 79,041.26, 109,076.82 and 47,228.78

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Solution

The fourth proportional to 79,041.26, 109,076.82 and 47,228.78 is: 65,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,041.26 : 109,076.82 = 47,228.78 : x
  2. Step 2: Convert to fraction form
    79,041.26/109,076.82 = 47,228.78/x
  3. Step 3: Cross multiply
    79,041.26x = 109,076.82 × 47,228.78
  4. Step 4: Simplify right side
    79,041.26x = 5,151,565,134.88
  5. Step 5: Solve for x
    x = 5,151,565,134.88/79,041.26
  6. Step 6: Final answer
    x = 65,175.65

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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.