Home / 54,230.20-81,237.30-47,735.80

Finding the Fourth Proportional to 54,230.20, 81,237.30 and 47,735.80

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Solution

The fourth proportional to 54,230.20, 81,237.30 and 47,735.80 is: 71,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,230.20 : 81,237.30 = 47,735.80 : x
  2. Step 2: Convert to fraction form
    54,230.20/81,237.30 = 47,735.80/x
  3. Step 3: Cross multiply
    54,230.20x = 81,237.30 × 47,735.80
  4. Step 4: Simplify right side
    54,230.20x = 3,877,927,505.34
  5. Step 5: Solve for x
    x = 3,877,927,505.34/54,230.20
  6. Step 6: Final answer
    x = 71,508.63

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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.