Home / 69,105.12-103,862.16-57,335.25

Finding the Fourth Proportional to 69,105.12, 103,862.16 and 57,335.25

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Solution

The fourth proportional to 69,105.12, 103,862.16 and 57,335.25 is: 86,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,105.12 : 103,862.16 = 57,335.25 : x
  2. Step 2: Convert to fraction form
    69,105.12/103,862.16 = 57,335.25/x
  3. Step 3: Cross multiply
    69,105.12x = 103,862.16 × 57,335.25
  4. Step 4: Simplify right side
    69,105.12x = 5,954,962,909.14
  5. Step 5: Solve for x
    x = 5,954,962,909.14/69,105.12
  6. Step 6: Final answer
    x = 86,172.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.