Home / 65,474.26-90,350.22-38,610.60

Finding the Fourth Proportional to 65,474.26, 90,350.22 and 38,610.60

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Solution

The fourth proportional to 65,474.26, 90,350.22 and 38,610.60 is: 53,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,474.26 : 90,350.22 = 38,610.60 : x
  2. Step 2: Convert to fraction form
    65,474.26/90,350.22 = 38,610.60/x
  3. Step 3: Cross multiply
    65,474.26x = 90,350.22 × 38,610.60
  4. Step 4: Simplify right side
    65,474.26x = 3,488,476,204.33
  5. Step 5: Solve for x
    x = 3,488,476,204.33/65,474.26
  6. Step 6: Final answer
    x = 53,280.12

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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.