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Finding the Fourth Proportional to 68,008.80, 102,053.34 and 28,562.88

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Solution

The fourth proportional to 68,008.80, 102,053.34 and 28,562.88 is: 42,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,008.80 : 102,053.34 = 28,562.88 : x
  2. Step 2: Convert to fraction form
    68,008.80/102,053.34 = 28,562.88/x
  3. Step 3: Cross multiply
    68,008.80x = 102,053.34 × 28,562.88
  4. Step 4: Simplify right side
    68,008.80x = 2,914,937,304.02
  5. Step 5: Solve for x
    x = 2,914,937,304.02/68,008.80
  6. Step 6: Final answer
    x = 42,861.18

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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.