Home / 90,891.12-136,273.43-40,262.66

Finding the Fourth Proportional to 90,891.12, 136,273.43 and 40,262.66

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Solution

The fourth proportional to 90,891.12, 136,273.43 and 40,262.66 is: 60,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,891.12 : 136,273.43 = 40,262.66 : x
  2. Step 2: Convert to fraction form
    90,891.12/136,273.43 = 40,262.66/x
  3. Step 3: Cross multiply
    90,891.12x = 136,273.43 × 40,262.66
  4. Step 4: Simplify right side
    90,891.12x = 5,486,729,896.44
  5. Step 5: Solve for x
    x = 5,486,729,896.44/90,891.12
  6. Step 6: Final answer
    x = 60,365.96

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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.