Home / 68,172.84-94,104.18-39,887.64

Finding the Fourth Proportional to 68,172.84, 94,104.18 and 39,887.64

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Solution

The fourth proportional to 68,172.84, 94,104.18 and 39,887.64 is: 55,059.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,172.84 : 94,104.18 = 39,887.64 : x
  2. Step 2: Convert to fraction form
    68,172.84/94,104.18 = 39,887.64/x
  3. Step 3: Cross multiply
    68,172.84x = 94,104.18 × 39,887.64
  4. Step 4: Simplify right side
    68,172.84x = 3,753,593,654.34
  5. Step 5: Solve for x
    x = 3,753,593,654.34/68,172.84
  6. Step 6: Final answer
    x = 55,059.96

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1.5x scale

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.