Home / 79,058.28-109,103.13-45,071.82

Finding the Fourth Proportional to 79,058.28, 109,103.13 and 45,071.82

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Solution

The fourth proportional to 79,058.28, 109,103.13 and 45,071.82 is: 62,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,058.28 : 109,103.13 = 45,071.82 : x
  2. Step 2: Convert to fraction form
    79,058.28/109,103.13 = 45,071.82/x
  3. Step 3: Cross multiply
    79,058.28x = 109,103.13 × 45,071.82
  4. Step 4: Simplify right side
    79,058.28x = 4,917,476,636.80
  5. Step 5: Solve for x
    x = 4,917,476,636.80/79,058.28
  6. Step 6: Final answer
    x = 62,200.65

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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.