Home / 47,780.08-71,669.71-12,241.33

Finding the Fourth Proportional to 47,780.08, 71,669.71 and 12,241.33

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Solution

The fourth proportional to 47,780.08, 71,669.71 and 12,241.33 is: 18,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.08 : 71,669.71 = 12,241.33 : x
  2. Step 2: Convert to fraction form
    47,780.08/71,669.71 = 12,241.33/x
  3. Step 3: Cross multiply
    47,780.08x = 71,669.71 × 12,241.33
  4. Step 4: Simplify right side
    47,780.08x = 877,332,571.11
  5. Step 5: Solve for x
    x = 877,332,571.11/47,780.08
  6. Step 6: Final answer
    x = 18,361.89

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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.