Home / 91,139.85-125,773.32-50,855.31

Finding the Fourth Proportional to 91,139.85, 125,773.32 and 50,855.31

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Solution

The fourth proportional to 91,139.85, 125,773.32 and 50,855.31 is: 70,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,139.85 : 125,773.32 = 50,855.31 : x
  2. Step 2: Convert to fraction form
    91,139.85/125,773.32 = 50,855.31/x
  3. Step 3: Cross multiply
    91,139.85x = 125,773.32 × 50,855.31
  4. Step 4: Simplify right side
    91,139.85x = 6,396,241,178.33
  5. Step 5: Solve for x
    x = 6,396,241,178.33/91,139.85
  6. Step 6: Final answer
    x = 70,180.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.