Home / 90,568.45-135,814.75-34,377.59

Finding the Fourth Proportional to 90,568.45, 135,814.75 and 34,377.59

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Solution

The fourth proportional to 90,568.45, 135,814.75 and 34,377.59 is: 51,551.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.45 : 135,814.75 = 34,377.59 : x
  2. Step 2: Convert to fraction form
    90,568.45/135,814.75 = 34,377.59/x
  3. Step 3: Cross multiply
    90,568.45x = 135,814.75 × 34,377.59
  4. Step 4: Simplify right side
    90,568.45x = 4,668,983,759.75
  5. Step 5: Solve for x
    x = 4,668,983,759.75/90,568.45
  6. Step 6: Final answer
    x = 51,551.99

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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.