Home / 81,208.56-121,874.40-34,494.24

Finding the Fourth Proportional to 81,208.56, 121,874.40 and 34,494.24

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Solution

The fourth proportional to 81,208.56, 121,874.40 and 34,494.24 is: 51,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,208.56 : 121,874.40 = 34,494.24 : x
  2. Step 2: Convert to fraction form
    81,208.56/121,874.40 = 34,494.24/x
  3. Step 3: Cross multiply
    81,208.56x = 121,874.40 × 34,494.24
  4. Step 4: Simplify right side
    81,208.56x = 4,203,964,803.46
  5. Step 5: Solve for x
    x = 4,203,964,803.46/81,208.56
  6. Step 6: Final answer
    x = 51,767.51

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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.