Home / 90,581.55-135,895.83-34,422.63

Finding the Fourth Proportional to 90,581.55, 135,895.83 and 34,422.63

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Solution

The fourth proportional to 90,581.55, 135,895.83 and 34,422.63 is: 51,642.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,581.55 : 135,895.83 = 34,422.63 : x
  2. Step 2: Convert to fraction form
    90,581.55/135,895.83 = 34,422.63/x
  3. Step 3: Cross multiply
    90,581.55x = 135,895.83 × 34,422.63
  4. Step 4: Simplify right side
    90,581.55x = 4,677,891,874.63
  5. Step 5: Solve for x
    x = 4,677,891,874.63/90,581.55
  6. Step 6: Final answer
    x = 51,642.88

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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.