Home / 90,080.10-135,010.80-40,107.15

Finding the Fourth Proportional to 90,080.10, 135,010.80 and 40,107.15

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Solution

The fourth proportional to 90,080.10, 135,010.80 and 40,107.15 is: 60,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,080.10 : 135,010.80 = 40,107.15 : x
  2. Step 2: Convert to fraction form
    90,080.10/135,010.80 = 40,107.15/x
  3. Step 3: Cross multiply
    90,080.10x = 135,010.80 × 40,107.15
  4. Step 4: Simplify right side
    90,080.10x = 5,414,898,407.22
  5. Step 5: Solve for x
    x = 5,414,898,407.22/90,080.10
  6. Step 6: Final answer
    x = 60,112.04

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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.