Home / 81,207.30-121,808.89-22,041.43

Finding the Fourth Proportional to 81,207.30, 121,808.89 and 22,041.43

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Solution

The fourth proportional to 81,207.30, 121,808.89 and 22,041.43 is: 33,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,207.30 : 121,808.89 = 22,041.43 : x
  2. Step 2: Convert to fraction form
    81,207.30/121,808.89 = 22,041.43/x
  3. Step 3: Cross multiply
    81,207.30x = 121,808.89 × 22,041.43
  4. Step 4: Simplify right side
    81,207.30x = 2,684,842,122.31
  5. Step 5: Solve for x
    x = 2,684,842,122.31/81,207.30
  6. Step 6: Final answer
    x = 33,061.59

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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.