Home / 78,456.22-117,671.92-34,071.06

Finding the Fourth Proportional to 78,456.22, 117,671.92 and 34,071.06

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Solution

The fourth proportional to 78,456.22, 117,671.92 and 34,071.06 is: 51,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,456.22 : 117,671.92 = 34,071.06 : x
  2. Step 2: Convert to fraction form
    78,456.22/117,671.92 = 34,071.06/x
  3. Step 3: Cross multiply
    78,456.22x = 117,671.92 × 34,071.06
  4. Step 4: Simplify right side
    78,456.22x = 4,009,207,046.64
  5. Step 5: Solve for x
    x = 4,009,207,046.64/78,456.22
  6. Step 6: Final answer
    x = 51,101.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.