Home / 68,808.03-94,932.65-40,121.20

Finding the Fourth Proportional to 68,808.03, 94,932.65 and 40,121.20

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Solution

The fourth proportional to 68,808.03, 94,932.65 and 40,121.20 is: 55,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808.03 : 94,932.65 = 40,121.20 : x
  2. Step 2: Convert to fraction form
    68,808.03/94,932.65 = 40,121.20/x
  3. Step 3: Cross multiply
    68,808.03x = 94,932.65 × 40,121.20
  4. Step 4: Simplify right side
    68,808.03x = 3,808,812,056.15
  5. Step 5: Solve for x
    x = 3,808,812,056.15/68,808.03
  6. Step 6: Final answer
    x = 55,354.18

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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.