Home / 78,372.15-117,562.66-25,068.80

Finding the Fourth Proportional to 78,372.15, 117,562.66 and 25,068.80

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Solution

The fourth proportional to 78,372.15, 117,562.66 and 25,068.80 is: 37,604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,372.15 : 117,562.66 = 25,068.80 : x
  2. Step 2: Convert to fraction form
    78,372.15/117,562.66 = 25,068.80/x
  3. Step 3: Cross multiply
    78,372.15x = 117,562.66 × 25,068.80
  4. Step 4: Simplify right side
    78,372.15x = 2,947,155,042.24
  5. Step 5: Solve for x
    x = 2,947,155,042.24/78,372.15
  6. Step 6: Final answer
    x = 37,604.62

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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.