Home / 68,090.97-102,152.87-21,343.85

Finding the Fourth Proportional to 68,090.97, 102,152.87 and 21,343.85

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Solution

The fourth proportional to 68,090.97, 102,152.87 and 21,343.85 is: 32,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,090.97 : 102,152.87 = 21,343.85 : x
  2. Step 2: Convert to fraction form
    68,090.97/102,152.87 = 21,343.85/x
  3. Step 3: Cross multiply
    68,090.97x = 102,152.87 × 21,343.85
  4. Step 4: Simplify right side
    68,090.97x = 2,180,335,534.35
  5. Step 5: Solve for x
    x = 2,180,335,534.35/68,090.97
  6. Step 6: Final answer
    x = 32,020.92

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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.