Home / 90,343.45-135,521.85-27,158.59

Finding the Fourth Proportional to 90,343.45, 135,521.85 and 27,158.59

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Solution

The fourth proportional to 90,343.45, 135,521.85 and 27,158.59 is: 40,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.45 : 135,521.85 = 27,158.59 : x
  2. Step 2: Convert to fraction form
    90,343.45/135,521.85 = 27,158.59/x
  3. Step 3: Cross multiply
    90,343.45x = 135,521.85 × 27,158.59
  4. Step 4: Simplify right side
    90,343.45x = 3,680,581,682.58
  5. Step 5: Solve for x
    x = 3,680,581,682.58/90,343.45
  6. Step 6: Final answer
    x = 40,739.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.