Home / 68,864.88-103,295.94-45,321.15

Finding the Fourth Proportional to 68,864.88, 103,295.94 and 45,321.15

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Solution

The fourth proportional to 68,864.88, 103,295.94 and 45,321.15 is: 67,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,864.88 : 103,295.94 = 45,321.15 : x
  2. Step 2: Convert to fraction form
    68,864.88/103,295.94 = 45,321.15/x
  3. Step 3: Cross multiply
    68,864.88x = 103,295.94 × 45,321.15
  4. Step 4: Simplify right side
    68,864.88x = 4,681,490,791.13
  5. Step 5: Solve for x
    x = 4,681,490,791.13/68,864.88
  6. Step 6: Final answer
    x = 67,980.82

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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.