Home / 82,209.22-113,335.74-51,979.41

Finding the Fourth Proportional to 82,209.22, 113,335.74 and 51,979.41

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Solution

The fourth proportional to 82,209.22, 113,335.74 and 51,979.41 is: 71,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,209.22 : 113,335.74 = 51,979.41 : x
  2. Step 2: Convert to fraction form
    82,209.22/113,335.74 = 51,979.41/x
  3. Step 3: Cross multiply
    82,209.22x = 113,335.74 × 51,979.41
  4. Step 4: Simplify right side
    82,209.22x = 5,891,124,897.11
  5. Step 5: Solve for x
    x = 5,891,124,897.11/82,209.22
  6. Step 6: Final answer
    x = 71,660.15

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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.