Home / 54,875.88-82,309.73-19,815.57

Finding the Fourth Proportional to 54,875.88, 82,309.73 and 19,815.57

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Solution

The fourth proportional to 54,875.88, 82,309.73 and 19,815.57 is: 29,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,875.88 : 82,309.73 = 19,815.57 : x
  2. Step 2: Convert to fraction form
    54,875.88/82,309.73 = 19,815.57/x
  3. Step 3: Cross multiply
    54,875.88x = 82,309.73 × 19,815.57
  4. Step 4: Simplify right side
    54,875.88x = 1,631,014,216.50
  5. Step 5: Solve for x
    x = 1,631,014,216.50/54,875.88
  6. Step 6: Final answer
    x = 29,721.88

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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.