Home / 68,385.32-94,387.48-40,100.12

Finding the Fourth Proportional to 68,385.32, 94,387.48 and 40,100.12

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Solution

The fourth proportional to 68,385.32, 94,387.48 and 40,100.12 is: 55,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,385.32 : 94,387.48 = 40,100.12 : x
  2. Step 2: Convert to fraction form
    68,385.32/94,387.48 = 40,100.12/x
  3. Step 3: Cross multiply
    68,385.32x = 94,387.48 × 40,100.12
  4. Step 4: Simplify right side
    68,385.32x = 3,784,948,902.81
  5. Step 5: Solve for x
    x = 3,784,948,902.81/68,385.32
  6. Step 6: Final answer
    x = 55,347.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.