Home / 49,992.93-68,990.31-28,772.19

Finding the Fourth Proportional to 49,992.93, 68,990.31 and 28,772.19

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Solution

The fourth proportional to 49,992.93, 68,990.31 and 28,772.19 is: 39,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,992.93 : 68,990.31 = 28,772.19 : x
  2. Step 2: Convert to fraction form
    49,992.93/68,990.31 = 28,772.19/x
  3. Step 3: Cross multiply
    49,992.93x = 68,990.31 × 28,772.19
  4. Step 4: Simplify right side
    49,992.93x = 1,985,002,307.48
  5. Step 5: Solve for x
    x = 1,985,002,307.48/49,992.93
  6. Step 6: Final answer
    x = 39,705.66

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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.