Home / 81,235.37-121,874.79-25,073.21

Finding the Fourth Proportional to 81,235.37, 121,874.79 and 25,073.21

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Solution

The fourth proportional to 81,235.37, 121,874.79 and 25,073.21 is: 37,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,235.37 : 121,874.79 = 25,073.21 : x
  2. Step 2: Convert to fraction form
    81,235.37/121,874.79 = 25,073.21/x
  3. Step 3: Cross multiply
    81,235.37x = 121,874.79 × 25,073.21
  4. Step 4: Simplify right side
    81,235.37x = 3,055,792,203.38
  5. Step 5: Solve for x
    x = 3,055,792,203.38/81,235.37
  6. Step 6: Final answer
    x = 37,616.52

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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.