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Finding the Fourth Proportional to 68,008.88, 102,046.80 and 30,595.40

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Solution

The fourth proportional to 68,008.88, 102,046.80 and 30,595.40 is: 45,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,008.88 : 102,046.80 = 30,595.40 : x
  2. Step 2: Convert to fraction form
    68,008.88/102,046.80 = 30,595.40/x
  3. Step 3: Cross multiply
    68,008.88x = 102,046.80 × 30,595.40
  4. Step 4: Simplify right side
    68,008.88x = 3,122,162,664.72
  5. Step 5: Solve for x
    x = 3,122,162,664.72/68,008.88
  6. Step 6: Final answer
    x = 45,908.16

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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.