Home / 61,986.60-85,546.13-38,121.57

Finding the Fourth Proportional to 61,986.60, 85,546.13 and 38,121.57

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Solution

The fourth proportional to 61,986.60, 85,546.13 and 38,121.57 is: 52,610.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,986.60 : 85,546.13 = 38,121.57 : x
  2. Step 2: Convert to fraction form
    61,986.60/85,546.13 = 38,121.57/x
  3. Step 3: Cross multiply
    61,986.60x = 85,546.13 × 38,121.57
  4. Step 4: Simplify right side
    61,986.60x = 3,261,152,592.42
  5. Step 5: Solve for x
    x = 3,261,152,592.42/61,986.60
  6. Step 6: Final answer
    x = 52,610.61

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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.