Home / 68,947.03-103,324.86-31,415.38

Finding the Fourth Proportional to 68,947.03, 103,324.86 and 31,415.38

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Solution

The fourth proportional to 68,947.03, 103,324.86 and 31,415.38 is: 47,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,947.03 : 103,324.86 = 31,415.38 : x
  2. Step 2: Convert to fraction form
    68,947.03/103,324.86 = 31,415.38/x
  3. Step 3: Cross multiply
    68,947.03x = 103,324.86 × 31,415.38
  4. Step 4: Simplify right side
    68,947.03x = 3,245,989,066.65
  5. Step 5: Solve for x
    x = 3,245,989,066.65/68,947.03
  6. Step 6: Final answer
    x = 47,079.47

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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.