Home / 49,951-68,934.36-28,730.24

Finding the Fourth Proportional to 49,951, 68,934.36 and 28,730.24

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Solution

The fourth proportional to 49,951, 68,934.36 and 28,730.24 is: 39,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,951 : 68,934.36 = 28,730.24 : x
  2. Step 2: Convert to fraction form
    49,951/68,934.36 = 28,730.24/x
  3. Step 3: Cross multiply
    49,951x = 68,934.36 × 28,730.24
  4. Step 4: Simplify right side
    49,951x = 1,980,500,707.05
  5. Step 5: Solve for x
    x = 1,980,500,707.05/49,951
  6. Step 6: Final answer
    x = 39,648.87

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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.