Home / 90,517.64-135,732.60-53,089.96

Finding the Fourth Proportional to 90,517.64, 135,732.60 and 53,089.96

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Solution

The fourth proportional to 90,517.64, 135,732.60 and 53,089.96 is: 79,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.64 : 135,732.60 = 53,089.96 : x
  2. Step 2: Convert to fraction form
    90,517.64/135,732.60 = 53,089.96/x
  3. Step 3: Cross multiply
    90,517.64x = 135,732.60 × 53,089.96
  4. Step 4: Simplify right side
    90,517.64x = 7,206,038,304.70
  5. Step 5: Solve for x
    x = 7,206,038,304.70/90,517.64
  6. Step 6: Final answer
    x = 79,609.22

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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.