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Finding the Fourth Proportional to 79,450.20, 109,650.96 and 45,916.20

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Solution

The fourth proportional to 79,450.20, 109,650.96 and 45,916.20 is: 63,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,450.20 : 109,650.96 = 45,916.20 : x
  2. Step 2: Convert to fraction form
    79,450.20/109,650.96 = 45,916.20/x
  3. Step 3: Cross multiply
    79,450.20x = 109,650.96 × 45,916.20
  4. Step 4: Simplify right side
    79,450.20x = 5,034,755,409.55
  5. Step 5: Solve for x
    x = 5,034,755,409.55/79,450.20
  6. Step 6: Final answer
    x = 63,369.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.