Home / 69,578.06-103,530.18-69,344.78

Finding the Fourth Proportional to 69,578.06, 103,530.18 and 69,344.78

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Solution

The fourth proportional to 69,578.06, 103,530.18 and 69,344.78 is: 103,183.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,578.06 : 103,530.18 = 69,344.78 : x
  2. Step 2: Convert to fraction form
    69,578.06/103,530.18 = 69,344.78/x
  3. Step 3: Cross multiply
    69,578.06x = 103,530.18 × 69,344.78
  4. Step 4: Simplify right side
    69,578.06x = 7,179,277,208.74
  5. Step 5: Solve for x
    x = 7,179,277,208.74/69,578.06
  6. Step 6: Final answer
    x = 103,183.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.