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Finding the Fourth Proportional to 78,080.40, 117,042.84 and 44,760.24

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Solution

The fourth proportional to 78,080.40, 117,042.84 and 44,760.24 is: 67,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080.40 : 117,042.84 = 44,760.24 : x
  2. Step 2: Convert to fraction form
    78,080.40/117,042.84 = 44,760.24/x
  3. Step 3: Cross multiply
    78,080.40x = 117,042.84 × 44,760.24
  4. Step 4: Simplify right side
    78,080.40x = 5,238,865,608.68
  5. Step 5: Solve for x
    x = 5,238,865,608.68/78,080.40
  6. Step 6: Final answer
    x = 67,095.78

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1.5x scale

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.