Home / 71,382.22-107,064.82-18,795.81

Finding the Fourth Proportional to 71,382.22, 107,064.82 and 18,795.81

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Solution

The fourth proportional to 71,382.22, 107,064.82 and 18,795.81 is: 28,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.22 : 107,064.82 = 18,795.81 : x
  2. Step 2: Convert to fraction form
    71,382.22/107,064.82 = 18,795.81/x
  3. Step 3: Cross multiply
    71,382.22x = 107,064.82 × 18,795.81
  4. Step 4: Simplify right side
    71,382.22x = 2,012,370,014.40
  5. Step 5: Solve for x
    x = 2,012,370,014.40/71,382.22
  6. Step 6: Final answer
    x = 28,191.47

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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.