Home / 61,679.38-85,133.49-40,222.61

Finding the Fourth Proportional to 61,679.38, 85,133.49 and 40,222.61

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Solution

The fourth proportional to 61,679.38, 85,133.49 and 40,222.61 is: 55,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.38 : 85,133.49 = 40,222.61 : x
  2. Step 2: Convert to fraction form
    61,679.38/85,133.49 = 40,222.61/x
  3. Step 3: Cross multiply
    61,679.38x = 85,133.49 × 40,222.61
  4. Step 4: Simplify right side
    61,679.38x = 3,424,291,166.21
  5. Step 5: Solve for x
    x = 3,424,291,166.21/61,679.38
  6. Step 6: Final answer
    x = 55,517.60

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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.