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Finding the Fourth Proportional to 45,108.27, 67,670.71 and 18,815.27

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Solution

The fourth proportional to 45,108.27, 67,670.71 and 18,815.27 is: 28,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.27 : 67,670.71 = 18,815.27 : x
  2. Step 2: Convert to fraction form
    45,108.27/67,670.71 = 18,815.27/x
  3. Step 3: Cross multiply
    45,108.27x = 67,670.71 × 18,815.27
  4. Step 4: Simplify right side
    45,108.27x = 1,273,242,294.35
  5. Step 5: Solve for x
    x = 1,273,242,294.35/45,108.27
  6. Step 6: Final answer
    x = 28,226.36

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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.