Home / 54,390.80-75,059.24-31,745.36

Finding the Fourth Proportional to 54,390.80, 75,059.24 and 31,745.36

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Solution

The fourth proportional to 54,390.80, 75,059.24 and 31,745.36 is: 43,808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.80 : 75,059.24 = 31,745.36 : x
  2. Step 2: Convert to fraction form
    54,390.80/75,059.24 = 31,745.36/x
  3. Step 3: Cross multiply
    54,390.80x = 75,059.24 × 31,745.36
  4. Step 4: Simplify right side
    54,390.80x = 2,382,782,595.13
  5. Step 5: Solve for x
    x = 2,382,782,595.13/54,390.80
  6. Step 6: Final answer
    x = 43,808.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.