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Finding the Fourth Proportional to 71,195.00, 106,788.83 and 21,275.51

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Solution

The fourth proportional to 71,195.00, 106,788.83 and 21,275.51 is: 31,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.00 : 106,788.83 = 21,275.51 : x
  2. Step 2: Convert to fraction form
    71,195.00/106,788.83 = 21,275.51/x
  3. Step 3: Cross multiply
    71,195.00x = 106,788.83 × 21,275.51
  4. Step 4: Simplify right side
    71,195.00x = 2,271,986,180.23
  5. Step 5: Solve for x
    x = 2,271,986,180.23/71,195.00
  6. Step 6: Final answer
    x = 31,912.16

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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.