Home / 47,906.20-71,859.30-18,308.80

Finding the Fourth Proportional to 47,906.20, 71,859.30 and 18,308.80

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Solution

The fourth proportional to 47,906.20, 71,859.30 and 18,308.80 is: 27,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,906.20 : 71,859.30 = 18,308.80 : x
  2. Step 2: Convert to fraction form
    47,906.20/71,859.30 = 18,308.80/x
  3. Step 3: Cross multiply
    47,906.20x = 71,859.30 × 18,308.80
  4. Step 4: Simplify right side
    47,906.20x = 1,315,657,551.84
  5. Step 5: Solve for x
    x = 1,315,657,551.84/47,906.20
  6. Step 6: Final answer
    x = 27,463.20

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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.