Home / 54,187.76-81,281.64-19,105.04

Finding the Fourth Proportional to 54,187.76, 81,281.64 and 19,105.04

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Solution

The fourth proportional to 54,187.76, 81,281.64 and 19,105.04 is: 28,657.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,187.76 : 81,281.64 = 19,105.04 : x
  2. Step 2: Convert to fraction form
    54,187.76/81,281.64 = 19,105.04/x
  3. Step 3: Cross multiply
    54,187.76x = 81,281.64 × 19,105.04
  4. Step 4: Simplify right side
    54,187.76x = 1,552,888,983.47
  5. Step 5: Solve for x
    x = 1,552,888,983.47/54,187.76
  6. Step 6: Final answer
    x = 28,657.56

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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.