Home / 49,079.30-67,720.20-28,942.52

Finding the Fourth Proportional to 49,079.30, 67,720.20 and 28,942.52

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Solution

The fourth proportional to 49,079.30, 67,720.20 and 28,942.52 is: 39,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,079.30 : 67,720.20 = 28,942.52 : x
  2. Step 2: Convert to fraction form
    49,079.30/67,720.20 = 28,942.52/x
  3. Step 3: Cross multiply
    49,079.30x = 67,720.20 × 28,942.52
  4. Step 4: Simplify right side
    49,079.30x = 1,959,993,242.90
  5. Step 5: Solve for x
    x = 1,959,993,242.90/49,079.30
  6. Step 6: Final answer
    x = 39,935.23

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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.