Home / 81,265.96-121,910.46-25,110.64

Finding the Fourth Proportional to 81,265.96, 121,910.46 and 25,110.64

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Solution

The fourth proportional to 81,265.96, 121,910.46 and 25,110.64 is: 37,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,265.96 : 121,910.46 = 25,110.64 : x
  2. Step 2: Convert to fraction form
    81,265.96/121,910.46 = 25,110.64/x
  3. Step 3: Cross multiply
    81,265.96x = 121,910.46 × 25,110.64
  4. Step 4: Simplify right side
    81,265.96x = 3,061,249,673.29
  5. Step 5: Solve for x
    x = 3,061,249,673.29/81,265.96
  6. Step 6: Final answer
    x = 37,669.52

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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.