Home / 78,566.13-117,849.78-22,406.18

Finding the Fourth Proportional to 78,566.13, 117,849.78 and 22,406.18

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Solution

The fourth proportional to 78,566.13, 117,849.78 and 22,406.18 is: 33,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,566.13 : 117,849.78 = 22,406.18 : x
  2. Step 2: Convert to fraction form
    78,566.13/117,849.78 = 22,406.18/x
  3. Step 3: Cross multiply
    78,566.13x = 117,849.78 × 22,406.18
  4. Step 4: Simplify right side
    78,566.13x = 2,640,562,794.39
  5. Step 5: Solve for x
    x = 2,640,562,794.39/78,566.13
  6. Step 6: Final answer
    x = 33,609.43

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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.