Home / 90,080.30-135,120.45-36,797.42

Finding the Fourth Proportional to 90,080.30, 135,120.45 and 36,797.42

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Solution

The fourth proportional to 90,080.30, 135,120.45 and 36,797.42 is: 55,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,080.30 : 135,120.45 = 36,797.42 : x
  2. Step 2: Convert to fraction form
    90,080.30/135,120.45 = 36,797.42/x
  3. Step 3: Cross multiply
    90,080.30x = 135,120.45 × 36,797.42
  4. Step 4: Simplify right side
    90,080.30x = 4,972,084,140.01
  5. Step 5: Solve for x
    x = 4,972,084,140.01/90,080.30
  6. Step 6: Final answer
    x = 55,196.13

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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.