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Finding the Fourth Proportional to 45,276.60, 67,914.90 and 12,001.80

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Solution

The fourth proportional to 45,276.60, 67,914.90 and 12,001.80 is: 18,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,276.60 : 67,914.90 = 12,001.80 : x
  2. Step 2: Convert to fraction form
    45,276.60/67,914.90 = 12,001.80/x
  3. Step 3: Cross multiply
    45,276.60x = 67,914.90 × 12,001.80
  4. Step 4: Simplify right side
    45,276.60x = 815,101,046.82
  5. Step 5: Solve for x
    x = 815,101,046.82/45,276.60
  6. Step 6: Final answer
    x = 18,002.70

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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.