Home / 78,458.22-117,674.92-34,073.06

Finding the Fourth Proportional to 78,458.22, 117,674.92 and 34,073.06

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Solution

The fourth proportional to 78,458.22, 117,674.92 and 34,073.06 is: 51,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,458.22 : 117,674.92 = 34,073.06 : x
  2. Step 2: Convert to fraction form
    78,458.22/117,674.92 = 34,073.06/x
  3. Step 3: Cross multiply
    78,458.22x = 117,674.92 × 34,073.06
  4. Step 4: Simplify right side
    78,458.22x = 4,009,544,609.66
  5. Step 5: Solve for x
    x = 4,009,544,609.66/78,458.22
  6. Step 6: Final answer
    x = 51,104.20

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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.