Home / 67,211.67-92,747.34-39,986.25

Finding the Fourth Proportional to 67,211.67, 92,747.34 and 39,986.25

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Solution

The fourth proportional to 67,211.67, 92,747.34 and 39,986.25 is: 55,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.67 : 92,747.34 = 39,986.25 : x
  2. Step 2: Convert to fraction form
    67,211.67/92,747.34 = 39,986.25/x
  3. Step 3: Cross multiply
    67,211.67x = 92,747.34 × 39,986.25
  4. Step 4: Simplify right side
    67,211.67x = 3,708,618,324.08
  5. Step 5: Solve for x
    x = 3,708,618,324.08/67,211.67
  6. Step 6: Final answer
    x = 55,178.19

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1.5x scale

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.