Home / 90,471.40-135,719.90-35,073

Finding the Fourth Proportional to 90,471.40, 135,719.90 and 35,073

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Solution

The fourth proportional to 90,471.40, 135,719.90 and 35,073 is: 52,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,471.40 : 135,719.90 = 35,073 : x
  2. Step 2: Convert to fraction form
    90,471.40/135,719.90 = 35,073/x
  3. Step 3: Cross multiply
    90,471.40x = 135,719.90 × 35,073
  4. Step 4: Simplify right side
    90,471.40x = 4,760,104,052.70
  5. Step 5: Solve for x
    x = 4,760,104,052.70/90,471.40
  6. Step 6: Final answer
    x = 52,614.46

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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.