Home / 61,778.44-85,209.24-39,121.12

Finding the Fourth Proportional to 61,778.44, 85,209.24 and 39,121.12

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Solution

The fourth proportional to 61,778.44, 85,209.24 and 39,121.12 is: 53,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,778.44 : 85,209.24 = 39,121.12 : x
  2. Step 2: Convert to fraction form
    61,778.44/85,209.24 = 39,121.12/x
  3. Step 3: Cross multiply
    61,778.44x = 85,209.24 × 39,121.12
  4. Step 4: Simplify right side
    61,778.44x = 3,333,480,903.15
  5. Step 5: Solve for x
    x = 3,333,480,903.15/61,778.44
  6. Step 6: Final answer
    x = 53,958.64

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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.