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Finding the Fourth Proportional to 44,168.40, 66,256.20 and 12,578.40

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Solution

The fourth proportional to 44,168.40, 66,256.20 and 12,578.40 is: 18,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,168.40 : 66,256.20 = 12,578.40 : x
  2. Step 2: Convert to fraction form
    44,168.40/66,256.20 = 12,578.40/x
  3. Step 3: Cross multiply
    44,168.40x = 66,256.20 × 12,578.40
  4. Step 4: Simplify right side
    44,168.40x = 833,396,986.08
  5. Step 5: Solve for x
    x = 833,396,986.08/44,168.40
  6. Step 6: Final answer
    x = 18,868.63

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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.