Home / 83,986.74-125,936.37-31,352.94

Finding the Fourth Proportional to 83,986.74, 125,936.37 and 31,352.94

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Solution

The fourth proportional to 83,986.74, 125,936.37 and 31,352.94 is: 47,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,986.74 : 125,936.37 = 31,352.94 : x
  2. Step 2: Convert to fraction form
    83,986.74/125,936.37 = 31,352.94/x
  3. Step 3: Cross multiply
    83,986.74x = 125,936.37 × 31,352.94
  4. Step 4: Simplify right side
    83,986.74x = 3,948,475,452.43
  5. Step 5: Solve for x
    x = 3,948,475,452.43/83,986.74
  6. Step 6: Final answer
    x = 47,013.08

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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.