Home / 49,106.20-67,781.46-28,961.50

Finding the Fourth Proportional to 49,106.20, 67,781.46 and 28,961.50

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Solution

The fourth proportional to 49,106.20, 67,781.46 and 28,961.50 is: 39,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,106.20 : 67,781.46 = 28,961.50 : x
  2. Step 2: Convert to fraction form
    49,106.20/67,781.46 = 28,961.50/x
  3. Step 3: Cross multiply
    49,106.20x = 67,781.46 × 28,961.50
  4. Step 4: Simplify right side
    49,106.20x = 1,963,052,753.79
  5. Step 5: Solve for x
    x = 1,963,052,753.79/49,106.20
  6. Step 6: Final answer
    x = 39,975.66

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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.