Home / 84,209.97-126,315.54-57,834.75

Finding the Fourth Proportional to 84,209.97, 126,315.54 and 57,834.75

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Solution

The fourth proportional to 84,209.97, 126,315.54 and 57,834.75 is: 86,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.97 : 126,315.54 = 57,834.75 : x
  2. Step 2: Convert to fraction form
    84,209.97/126,315.54 = 57,834.75/x
  3. Step 3: Cross multiply
    84,209.97x = 126,315.54 × 57,834.75
  4. Step 4: Simplify right side
    84,209.97x = 7,305,427,677.02
  5. Step 5: Solve for x
    x = 7,305,427,677.02/84,209.97
  6. Step 6: Final answer
    x = 86,752.53

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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.