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Finding the Fourth Proportional to 45,086.52, 67,599.54 and 40,395

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Solution

The fourth proportional to 45,086.52, 67,599.54 and 40,395 is: 60,565.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.52 : 67,599.54 = 40,395 : x
  2. Step 2: Convert to fraction form
    45,086.52/67,599.54 = 40,395/x
  3. Step 3: Cross multiply
    45,086.52x = 67,599.54 × 40,395
  4. Step 4: Simplify right side
    45,086.52x = 2,730,683,418.30
  5. Step 5: Solve for x
    x = 2,730,683,418.30/45,086.52
  6. Step 6: Final answer
    x = 60,565.41

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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.