Home / 68,319.80-102,490.56-28,877.25

Finding the Fourth Proportional to 68,319.80, 102,490.56 and 28,877.25

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Solution

The fourth proportional to 68,319.80, 102,490.56 and 28,877.25 is: 43,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,319.80 : 102,490.56 = 28,877.25 : x
  2. Step 2: Convert to fraction form
    68,319.80/102,490.56 = 28,877.25/x
  3. Step 3: Cross multiply
    68,319.80x = 102,490.56 × 28,877.25
  4. Step 4: Simplify right side
    68,319.80x = 2,959,645,523.76
  5. Step 5: Solve for x
    x = 2,959,645,523.76/68,319.80
  6. Step 6: Final answer
    x = 43,320.47

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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.