Home / 71,821.22-107,737.59-19,230.26

Finding the Fourth Proportional to 71,821.22, 107,737.59 and 19,230.26

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Solution

The fourth proportional to 71,821.22, 107,737.59 and 19,230.26 is: 28,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,821.22 : 107,737.59 = 19,230.26 : x
  2. Step 2: Convert to fraction form
    71,821.22/107,737.59 = 19,230.26/x
  3. Step 3: Cross multiply
    71,821.22x = 107,737.59 × 19,230.26
  4. Step 4: Simplify right side
    71,821.22x = 2,071,821,867.47
  5. Step 5: Solve for x
    x = 2,071,821,867.47/71,821.22
  6. Step 6: Final answer
    x = 28,846.93

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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.