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Finding the Fourth Proportional to 68,010.88, 102,000.12 and 28,568.76

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Solution

The fourth proportional to 68,010.88, 102,000.12 and 28,568.76 is: 42,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,010.88 : 102,000.12 = 28,568.76 : x
  2. Step 2: Convert to fraction form
    68,010.88/102,000.12 = 28,568.76/x
  3. Step 3: Cross multiply
    68,010.88x = 102,000.12 × 28,568.76
  4. Step 4: Simplify right side
    68,010.88x = 2,914,016,948.25
  5. Step 5: Solve for x
    x = 2,914,016,948.25/68,010.88
  6. Step 6: Final answer
    x = 42,846.34

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1.5x scale

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.