Home / 54,208.20-81,204.30-47,713.80

Finding the Fourth Proportional to 54,208.20, 81,204.30 and 47,713.80

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Solution

The fourth proportional to 54,208.20, 81,204.30 and 47,713.80 is: 71,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,208.20 : 81,204.30 = 47,713.80 : x
  2. Step 2: Convert to fraction form
    54,208.20/81,204.30 = 47,713.80/x
  3. Step 3: Cross multiply
    54,208.20x = 81,204.30 × 47,713.80
  4. Step 4: Simplify right side
    54,208.20x = 3,874,565,729.34
  5. Step 5: Solve for x
    x = 3,874,565,729.34/54,208.20
  6. Step 6: Final answer
    x = 71,475.64

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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.