Home / 81,027.30-121,526.28-21,849.06

Finding the Fourth Proportional to 81,027.30, 121,526.28 and 21,849.06

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Solution

The fourth proportional to 81,027.30, 121,526.28 and 21,849.06 is: 32,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.30 : 121,526.28 = 21,849.06 : x
  2. Step 2: Convert to fraction form
    81,027.30/121,526.28 = 21,849.06/x
  3. Step 3: Cross multiply
    81,027.30x = 121,526.28 × 21,849.06
  4. Step 4: Simplify right side
    81,027.30x = 2,655,234,983.30
  5. Step 5: Solve for x
    x = 2,655,234,983.30/81,027.30
  6. Step 6: Final answer
    x = 32,769.63

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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.