Home / 54,572.20-81,866.50-19,509.12

Finding the Fourth Proportional to 54,572.20, 81,866.50 and 19,509.12

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Solution

The fourth proportional to 54,572.20, 81,866.50 and 19,509.12 is: 29,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,572.20 : 81,866.50 = 19,509.12 : x
  2. Step 2: Convert to fraction form
    54,572.20/81,866.50 = 19,509.12/x
  3. Step 3: Cross multiply
    54,572.20x = 81,866.50 × 19,509.12
  4. Step 4: Simplify right side
    54,572.20x = 1,597,143,372.48
  5. Step 5: Solve for x
    x = 1,597,143,372.48/54,572.20
  6. Step 6: Final answer
    x = 29,266.61

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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.