Home / 90,418.44-135,609.13-34,239.17

Finding the Fourth Proportional to 90,418.44, 135,609.13 and 34,239.17

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Solution

The fourth proportional to 90,418.44, 135,609.13 and 34,239.17 is: 51,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,418.44 : 135,609.13 = 34,239.17 : x
  2. Step 2: Convert to fraction form
    90,418.44/135,609.13 = 34,239.17/x
  3. Step 3: Cross multiply
    90,418.44x = 135,609.13 × 34,239.17
  4. Step 4: Simplify right side
    90,418.44x = 4,643,144,309.05
  5. Step 5: Solve for x
    x = 4,643,144,309.05/90,418.44
  6. Step 6: Final answer
    x = 51,351.74

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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.