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Finding the Fourth Proportional to 71,873.62, 99,185.79 and 43,193.77

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Solution

The fourth proportional to 71,873.62, 99,185.79 and 43,193.77 is: 59,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,873.62 : 99,185.79 = 43,193.77 : x
  2. Step 2: Convert to fraction form
    71,873.62/99,185.79 = 43,193.77/x
  3. Step 3: Cross multiply
    71,873.62x = 99,185.79 × 43,193.77
  4. Step 4: Simplify right side
    71,873.62x = 4,284,208,200.53
  5. Step 5: Solve for x
    x = 4,284,208,200.53/71,873.62
  6. Step 6: Final answer
    x = 59,607.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.