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Finding the Fourth Proportional to 45,060, 67,590.12 and 12,228

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Solution

The fourth proportional to 45,060, 67,590.12 and 12,228 is: 18,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,060 : 67,590.12 = 12,228 : x
  2. Step 2: Convert to fraction form
    45,060/67,590.12 = 12,228/x
  3. Step 3: Cross multiply
    45,060x = 67,590.12 × 12,228
  4. Step 4: Simplify right side
    45,060x = 826,491,987.36
  5. Step 5: Solve for x
    x = 826,491,987.36/45,060
  6. Step 6: Final answer
    x = 18,342.03

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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.