Home / 78,276.20-117,408.06-22,114.04

Finding the Fourth Proportional to 78,276.20, 117,408.06 and 22,114.04

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Solution

The fourth proportional to 78,276.20, 117,408.06 and 22,114.04 is: 33,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.20 : 117,408.06 = 22,114.04 : x
  2. Step 2: Convert to fraction form
    78,276.20/117,408.06 = 22,114.04/x
  3. Step 3: Cross multiply
    78,276.20x = 117,408.06 × 22,114.04
  4. Step 4: Simplify right side
    78,276.20x = 2,596,366,535.16
  5. Step 5: Solve for x
    x = 2,596,366,535.16/78,276.20
  6. Step 6: Final answer
    x = 33,169.30

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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.