Home / 54,155.07-81,234-25,685.37

Finding the Fourth Proportional to 54,155.07, 81,234 and 25,685.37

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Solution

The fourth proportional to 54,155.07, 81,234 and 25,685.37 is: 38,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,155.07 : 81,234 = 25,685.37 : x
  2. Step 2: Convert to fraction form
    54,155.07/81,234 = 25,685.37/x
  3. Step 3: Cross multiply
    54,155.07x = 81,234 × 25,685.37
  4. Step 4: Simplify right side
    54,155.07x = 2,086,525,346.58
  5. Step 5: Solve for x
    x = 2,086,525,346.58/54,155.07
  6. Step 6: Final answer
    x = 38,528.72

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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.