Home / 54,032.80-81,053.09-20,752.86

Finding the Fourth Proportional to 54,032.80, 81,053.09 and 20,752.86

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Solution

The fourth proportional to 54,032.80, 81,053.09 and 20,752.86 is: 31,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,032.80 : 81,053.09 = 20,752.86 : x
  2. Step 2: Convert to fraction form
    54,032.80/81,053.09 = 20,752.86/x
  3. Step 3: Cross multiply
    54,032.80x = 81,053.09 × 20,752.86
  4. Step 4: Simplify right side
    54,032.80x = 1,682,083,429.34
  5. Step 5: Solve for x
    x = 1,682,083,429.34/54,032.80
  6. Step 6: Final answer
    x = 31,130.78

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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.