Home / 78,591.60-117,907.29-22,431.96

Finding the Fourth Proportional to 78,591.60, 117,907.29 and 22,431.96

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Solution

The fourth proportional to 78,591.60, 117,907.29 and 22,431.96 is: 33,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,591.60 : 117,907.29 = 22,431.96 : x
  2. Step 2: Convert to fraction form
    78,591.60/117,907.29 = 22,431.96/x
  3. Step 3: Cross multiply
    78,591.60x = 117,907.29 × 22,431.96
  4. Step 4: Simplify right side
    78,591.60x = 2,644,891,612.99
  5. Step 5: Solve for x
    x = 2,644,891,612.99/78,591.60
  6. Step 6: Final answer
    x = 33,653.62

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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.