Home / 91,507.12-137,215.60-38,182.96

Finding the Fourth Proportional to 91,507.12, 137,215.60 and 38,182.96

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Solution

The fourth proportional to 91,507.12, 137,215.60 and 38,182.96 is: 57,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,507.12 : 137,215.60 = 38,182.96 : x
  2. Step 2: Convert to fraction form
    91,507.12/137,215.60 = 38,182.96/x
  3. Step 3: Cross multiply
    91,507.12x = 137,215.60 × 38,182.96
  4. Step 4: Simplify right side
    91,507.12x = 5,239,297,766.18
  5. Step 5: Solve for x
    x = 5,239,297,766.18/91,507.12
  6. Step 6: Final answer
    x = 57,255.63

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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.