Home / 72,028.22-99,394.02-39,761.33

Finding the Fourth Proportional to 72,028.22, 99,394.02 and 39,761.33

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Solution

The fourth proportional to 72,028.22, 99,394.02 and 39,761.33 is: 54,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,028.22 : 99,394.02 = 39,761.33 : x
  2. Step 2: Convert to fraction form
    72,028.22/99,394.02 = 39,761.33/x
  3. Step 3: Cross multiply
    72,028.22x = 99,394.02 × 39,761.33
  4. Step 4: Simplify right side
    72,028.22x = 3,952,037,932.28
  5. Step 5: Solve for x
    x = 3,952,037,932.28/72,028.22
  6. Step 6: Final answer
    x = 54,867.91

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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.