Home / 54,470.13-81,720.99-19,412.52

Finding the Fourth Proportional to 54,470.13, 81,720.99 and 19,412.52

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Solution

The fourth proportional to 54,470.13, 81,720.99 and 19,412.52 is: 29,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,470.13 : 81,720.99 = 19,412.52 : x
  2. Step 2: Convert to fraction form
    54,470.13/81,720.99 = 19,412.52/x
  3. Step 3: Cross multiply
    54,470.13x = 81,720.99 × 19,412.52
  4. Step 4: Simplify right side
    54,470.13x = 1,586,410,352.79
  5. Step 5: Solve for x
    x = 1,586,410,352.79/54,470.13
  6. Step 6: Final answer
    x = 29,124.41

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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.