Home / 78,566.25-117,849.90-22,406.22

Finding the Fourth Proportional to 78,566.25, 117,849.90 and 22,406.22

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Solution

The fourth proportional to 78,566.25, 117,849.90 and 22,406.22 is: 33,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,566.25 : 117,849.90 = 22,406.22 : x
  2. Step 2: Convert to fraction form
    78,566.25/117,849.90 = 22,406.22/x
  3. Step 3: Cross multiply
    78,566.25x = 117,849.90 × 22,406.22
  4. Step 4: Simplify right side
    78,566.25x = 2,640,570,870.40
  5. Step 5: Solve for x
    x = 2,640,570,870.40/78,566.25
  6. Step 6: Final answer
    x = 33,609.48

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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.