Home / 68,261.12-102,405.62-38,692.16

Finding the Fourth Proportional to 68,261.12, 102,405.62 and 38,692.16

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Solution

The fourth proportional to 68,261.12, 102,405.62 and 38,692.16 is: 58,046.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,261.12 : 102,405.62 = 38,692.16 : x
  2. Step 2: Convert to fraction form
    68,261.12/102,405.62 = 38,692.16/x
  3. Step 3: Cross multiply
    68,261.12x = 102,405.62 × 38,692.16
  4. Step 4: Simplify right side
    68,261.12x = 3,962,294,633.94
  5. Step 5: Solve for x
    x = 3,962,294,633.94/68,261.12
  6. Step 6: Final answer
    x = 58,046.14

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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.