Home / 81,082.22-121,606.41-21,904.02

Finding the Fourth Proportional to 81,082.22, 121,606.41 and 21,904.02

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Solution

The fourth proportional to 81,082.22, 121,606.41 and 21,904.02 is: 32,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082.22 : 121,606.41 = 21,904.02 : x
  2. Step 2: Convert to fraction form
    81,082.22/121,606.41 = 21,904.02/x
  3. Step 3: Cross multiply
    81,082.22x = 121,606.41 × 21,904.02
  4. Step 4: Simplify right side
    81,082.22x = 2,663,669,318.91
  5. Step 5: Solve for x
    x = 2,663,669,318.91/81,082.22
  6. Step 6: Final answer
    x = 32,851.46

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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.