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Finding the Fourth Proportional to 36,480.46, 54,720.69 and 8,778.46

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Solution

The fourth proportional to 36,480.46, 54,720.69 and 8,778.46 is: 13,167.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,480.46 : 54,720.69 = 8,778.46 : x
  2. Step 2: Convert to fraction form
    36,480.46/54,720.69 = 8,778.46/x
  3. Step 3: Cross multiply
    36,480.46x = 54,720.69 × 8,778.46
  4. Step 4: Simplify right side
    36,480.46x = 480,363,388.34
  5. Step 5: Solve for x
    x = 480,363,388.34/36,480.46
  6. Step 6: Final answer
    x = 13,167.69

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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.