Home / 90,494.32-135,761.70-27,315.52

Finding the Fourth Proportional to 90,494.32, 135,761.70 and 27,315.52

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Solution

The fourth proportional to 90,494.32, 135,761.70 and 27,315.52 is: 40,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,494.32 : 135,761.70 = 27,315.52 : x
  2. Step 2: Convert to fraction form
    90,494.32/135,761.70 = 27,315.52/x
  3. Step 3: Cross multiply
    90,494.32x = 135,761.70 × 27,315.52
  4. Step 4: Simplify right side
    90,494.32x = 3,708,401,431.58
  5. Step 5: Solve for x
    x = 3,708,401,431.58/90,494.32
  6. Step 6: Final answer
    x = 40,979.38

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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.