Home / 47,709.97-71,555.23-18,117.43

Finding the Fourth Proportional to 47,709.97, 71,555.23 and 18,117.43

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Solution

The fourth proportional to 47,709.97, 71,555.23 and 18,117.43 is: 27,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,709.97 : 71,555.23 = 18,117.43 : x
  2. Step 2: Convert to fraction form
    47,709.97/71,555.23 = 18,117.43/x
  3. Step 3: Cross multiply
    47,709.97x = 71,555.23 × 18,117.43
  4. Step 4: Simplify right side
    47,709.97x = 1,296,396,870.66
  5. Step 5: Solve for x
    x = 1,296,396,870.66/47,709.97
  6. Step 6: Final answer
    x = 27,172.45

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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.