Home / 75,842.16-104,690.88-57,033.60

Finding the Fourth Proportional to 75,842.16, 104,690.88 and 57,033.60

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Solution

The fourth proportional to 75,842.16, 104,690.88 and 57,033.60 is: 78,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,842.16 : 104,690.88 = 57,033.60 : x
  2. Step 2: Convert to fraction form
    75,842.16/104,690.88 = 57,033.60/x
  3. Step 3: Cross multiply
    75,842.16x = 104,690.88 × 57,033.60
  4. Step 4: Simplify right side
    75,842.16x = 5,970,897,773.57
  5. Step 5: Solve for x
    x = 5,970,897,773.57/75,842.16
  6. Step 6: Final answer
    x = 78,727.95

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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.