Home / 84,185.40-126,189.30-28,010.52

Finding the Fourth Proportional to 84,185.40, 126,189.30 and 28,010.52

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Solution

The fourth proportional to 84,185.40, 126,189.30 and 28,010.52 is: 41,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,185.40 : 126,189.30 = 28,010.52 : x
  2. Step 2: Convert to fraction form
    84,185.40/126,189.30 = 28,010.52/x
  3. Step 3: Cross multiply
    84,185.40x = 126,189.30 × 28,010.52
  4. Step 4: Simplify right side
    84,185.40x = 3,534,627,911.44
  5. Step 5: Solve for x
    x = 3,534,627,911.44/84,185.40
  6. Step 6: Final answer
    x = 41,986.23

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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.