Home / 49,989.12-68,987.04-28,768.44

Finding the Fourth Proportional to 49,989.12, 68,987.04 and 28,768.44

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Solution

The fourth proportional to 49,989.12, 68,987.04 and 28,768.44 is: 39,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,989.12 : 68,987.04 = 28,768.44 : x
  2. Step 2: Convert to fraction form
    49,989.12/68,987.04 = 28,768.44/x
  3. Step 3: Cross multiply
    49,989.12x = 68,987.04 × 28,768.44
  4. Step 4: Simplify right side
    49,989.12x = 1,984,649,521.02
  5. Step 5: Solve for x
    x = 1,984,649,521.02/49,989.12
  6. Step 6: Final answer
    x = 39,701.63

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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.