Home / 45,369.05-67,854.61-40,406.43

Finding the Fourth Proportional to 45,369.05, 67,854.61 and 40,406.43

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Solution

The fourth proportional to 45,369.05, 67,854.61 and 40,406.43 is: 60,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,369.05 : 67,854.61 = 40,406.43 : x
  2. Step 2: Convert to fraction form
    45,369.05/67,854.61 = 40,406.43/x
  3. Step 3: Cross multiply
    45,369.05x = 67,854.61 × 40,406.43
  4. Step 4: Simplify right side
    45,369.05x = 2,741,762,549.14
  5. Step 5: Solve for x
    x = 2,741,762,549.14/45,369.05
  6. Step 6: Final answer
    x = 60,432.44

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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.