Home / 71,823.11-99,116.66-39,992.54

Finding the Fourth Proportional to 71,823.11, 99,116.66 and 39,992.54

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Solution

The fourth proportional to 71,823.11, 99,116.66 and 39,992.54 is: 55,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,823.11 : 99,116.66 = 39,992.54 : x
  2. Step 2: Convert to fraction form
    71,823.11/99,116.66 = 39,992.54/x
  3. Step 3: Cross multiply
    71,823.11x = 99,116.66 × 39,992.54
  4. Step 4: Simplify right side
    71,823.11x = 3,963,926,594.11
  5. Step 5: Solve for x
    x = 3,963,926,594.11/71,823.11
  6. Step 6: Final answer
    x = 55,190.13

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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.