Home / 81,026.30-121,524.78-21,848.06

Finding the Fourth Proportional to 81,026.30, 121,524.78 and 21,848.06

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Solution

The fourth proportional to 81,026.30, 121,524.78 and 21,848.06 is: 32,768.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,026.30 : 121,524.78 = 21,848.06 : x
  2. Step 2: Convert to fraction form
    81,026.30/121,524.78 = 21,848.06/x
  3. Step 3: Cross multiply
    81,026.30x = 121,524.78 × 21,848.06
  4. Step 4: Simplify right side
    81,026.30x = 2,655,080,684.93
  5. Step 5: Solve for x
    x = 2,655,080,684.93/81,026.30
  6. Step 6: Final answer
    x = 32,768.13

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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.