Home / 54,226.20-81,231.30-47,731.80

Finding the Fourth Proportional to 54,226.20, 81,231.30 and 47,731.80

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Solution

The fourth proportional to 54,226.20, 81,231.30 and 47,731.80 is: 71,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,226.20 : 81,231.30 = 47,731.80 : x
  2. Step 2: Convert to fraction form
    54,226.20/81,231.30 = 47,731.80/x
  3. Step 3: Cross multiply
    54,226.20x = 81,231.30 × 47,731.80
  4. Step 4: Simplify right side
    54,226.20x = 3,877,316,165.34
  5. Step 5: Solve for x
    x = 3,877,316,165.34/54,226.20
  6. Step 6: Final answer
    x = 71,502.63

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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.