Home / 68,787.12-103,042.44-35,886

Finding the Fourth Proportional to 68,787.12, 103,042.44 and 35,886

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Solution

The fourth proportional to 68,787.12, 103,042.44 and 35,886 is: 53,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,787.12 : 103,042.44 = 35,886 : x
  2. Step 2: Convert to fraction form
    68,787.12/103,042.44 = 35,886/x
  3. Step 3: Cross multiply
    68,787.12x = 103,042.44 × 35,886
  4. Step 4: Simplify right side
    68,787.12x = 3,697,781,001.84
  5. Step 5: Solve for x
    x = 3,697,781,001.84/68,787.12
  6. Step 6: Final answer
    x = 53,756.88

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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.