Home / 75,215.12-103,792.20-41,681.20

Finding the Fourth Proportional to 75,215.12, 103,792.20 and 41,681.20

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Solution

The fourth proportional to 75,215.12, 103,792.20 and 41,681.20 is: 57,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,215.12 : 103,792.20 = 41,681.20 : x
  2. Step 2: Convert to fraction form
    75,215.12/103,792.20 = 41,681.20/x
  3. Step 3: Cross multiply
    75,215.12x = 103,792.20 × 41,681.20
  4. Step 4: Simplify right side
    75,215.12x = 4,326,183,446.64
  5. Step 5: Solve for x
    x = 4,326,183,446.64/75,215.12
  6. Step 6: Final answer
    x = 57,517.47

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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.