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Finding the Fourth Proportional to 45,230.57, 67,846.03 and 18,916.85

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Solution

The fourth proportional to 45,230.57, 67,846.03 and 18,916.85 is: 28,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,230.57 : 67,846.03 = 18,916.85 : x
  2. Step 2: Convert to fraction form
    45,230.57/67,846.03 = 18,916.85/x
  3. Step 3: Cross multiply
    45,230.57x = 67,846.03 × 18,916.85
  4. Step 4: Simplify right side
    45,230.57x = 1,283,433,294.93
  5. Step 5: Solve for x
    x = 1,283,433,294.93/45,230.57
  6. Step 6: Final answer
    x = 28,375.35

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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.