Home / 84,172.28-126,270.42-27,993.88

Finding the Fourth Proportional to 84,172.28, 126,270.42 and 27,993.88

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Solution

The fourth proportional to 84,172.28, 126,270.42 and 27,993.88 is: 41,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,172.28 : 126,270.42 = 27,993.88 : x
  2. Step 2: Convert to fraction form
    84,172.28/126,270.42 = 27,993.88/x
  3. Step 3: Cross multiply
    84,172.28x = 126,270.42 × 27,993.88
  4. Step 4: Simplify right side
    84,172.28x = 3,534,798,985.03
  5. Step 5: Solve for x
    x = 3,534,798,985.03/84,172.28
  6. Step 6: Final answer
    x = 41,994.81

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1.5x scale

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.