Home / 49,999.20-68,999.67-28,493.70

Finding the Fourth Proportional to 49,999.20, 68,999.67 and 28,493.70

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Solution

The fourth proportional to 49,999.20, 68,999.67 and 28,493.70 is: 39,321.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,999.20 : 68,999.67 = 28,493.70 : x
  2. Step 2: Convert to fraction form
    49,999.20/68,999.67 = 28,493.70/x
  3. Step 3: Cross multiply
    49,999.20x = 68,999.67 × 28,493.70
  4. Step 4: Simplify right side
    49,999.20x = 1,966,055,897.08
  5. Step 5: Solve for x
    x = 1,966,055,897.08/49,999.20
  6. Step 6: Final answer
    x = 39,321.75

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1.5x scale

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.