Home / 75,885.12-104,716.80-41,893.20

Finding the Fourth Proportional to 75,885.12, 104,716.80 and 41,893.20

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Solution

The fourth proportional to 75,885.12, 104,716.80 and 41,893.20 is: 57,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,885.12 : 104,716.80 = 41,893.20 : x
  2. Step 2: Convert to fraction form
    75,885.12/104,716.80 = 41,893.20/x
  3. Step 3: Cross multiply
    75,885.12x = 104,716.80 × 41,893.20
  4. Step 4: Simplify right side
    75,885.12x = 4,386,921,845.76
  5. Step 5: Solve for x
    x = 4,386,921,845.76/75,885.12
  6. Step 6: Final answer
    x = 57,810.04

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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.