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Finding the Fourth Proportional to 36,346.55, 54,515.03 and 12,649.04

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Solution

The fourth proportional to 36,346.55, 54,515.03 and 12,649.04 is: 18,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,346.55 : 54,515.03 = 12,649.04 : x
  2. Step 2: Convert to fraction form
    36,346.55/54,515.03 = 12,649.04/x
  3. Step 3: Cross multiply
    36,346.55x = 54,515.03 × 12,649.04
  4. Step 4: Simplify right side
    36,346.55x = 689,562,459.25
  5. Step 5: Solve for x
    x = 689,562,459.25/36,346.55
  6. Step 6: Final answer
    x = 18,971.88

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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.