Home / 54,203.73-81,285.36-18,655.10

Finding the Fourth Proportional to 54,203.73, 81,285.36 and 18,655.10

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Solution

The fourth proportional to 54,203.73, 81,285.36 and 18,655.10 is: 27,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,203.73 : 81,285.36 = 18,655.10 : x
  2. Step 2: Convert to fraction form
    54,203.73/81,285.36 = 18,655.10/x
  3. Step 3: Cross multiply
    54,203.73x = 81,285.36 × 18,655.10
  4. Step 4: Simplify right side
    54,203.73x = 1,516,386,519.34
  5. Step 5: Solve for x
    x = 1,516,386,519.34/54,203.73
  6. Step 6: Final answer
    x = 27,975.69

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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.