Home / 49,990.10-69,003.70-28,777.82

Finding the Fourth Proportional to 49,990.10, 69,003.70 and 28,777.82

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Solution

The fourth proportional to 49,990.10, 69,003.70 and 28,777.82 is: 39,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,990.10 : 69,003.70 = 28,777.82 : x
  2. Step 2: Convert to fraction form
    49,990.10/69,003.70 = 28,777.82/x
  3. Step 3: Cross multiply
    49,990.10x = 69,003.70 × 28,777.82
  4. Step 4: Simplify right side
    49,990.10x = 1,985,775,640.97
  5. Step 5: Solve for x
    x = 1,985,775,640.97/49,990.10
  6. Step 6: Final answer
    x = 39,723.38

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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.