Home / 81,227.75-121,853.16-25,072.47

Finding the Fourth Proportional to 81,227.75, 121,853.16 and 25,072.47

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Solution

The fourth proportional to 81,227.75, 121,853.16 and 25,072.47 is: 37,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,227.75 : 121,853.16 = 25,072.47 : x
  2. Step 2: Convert to fraction form
    81,227.75/121,853.16 = 25,072.47/x
  3. Step 3: Cross multiply
    81,227.75x = 121,853.16 × 25,072.47
  4. Step 4: Simplify right side
    81,227.75x = 3,055,159,698.51
  5. Step 5: Solve for x
    x = 3,055,159,698.51/81,227.75
  6. Step 6: Final answer
    x = 37,612.27

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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.