Home / 81,326.24-121,995.53-25,172.03

Finding the Fourth Proportional to 81,326.24, 121,995.53 and 25,172.03

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Solution

The fourth proportional to 81,326.24, 121,995.53 and 25,172.03 is: 37,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.24 : 121,995.53 = 25,172.03 : x
  2. Step 2: Convert to fraction form
    81,326.24/121,995.53 = 25,172.03/x
  3. Step 3: Cross multiply
    81,326.24x = 121,995.53 × 25,172.03
  4. Step 4: Simplify right side
    81,326.24x = 3,070,874,405.19
  5. Step 5: Solve for x
    x = 3,070,874,405.19/81,326.24
  6. Step 6: Final answer
    x = 37,759.95

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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.