Home / 61,716.32-85,168.40-33,421.92

Finding the Fourth Proportional to 61,716.32, 85,168.40 and 33,421.92

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Solution

The fourth proportional to 61,716.32, 85,168.40 and 33,421.92 is: 46,122.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,716.32 : 85,168.40 = 33,421.92 : x
  2. Step 2: Convert to fraction form
    61,716.32/85,168.40 = 33,421.92/x
  3. Step 3: Cross multiply
    61,716.32x = 85,168.40 × 33,421.92
  4. Step 4: Simplify right side
    61,716.32x = 2,846,491,451.33
  5. Step 5: Solve for x
    x = 2,846,491,451.33/61,716.32
  6. Step 6: Final answer
    x = 46,122.18

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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.