Home / 49,878.78-68,833.38-28,369.62

Finding the Fourth Proportional to 49,878.78, 68,833.38 and 28,369.62

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Solution

The fourth proportional to 49,878.78, 68,833.38 and 28,369.62 is: 39,150.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,878.78 : 68,833.38 = 28,369.62 : x
  2. Step 2: Convert to fraction form
    49,878.78/68,833.38 = 28,369.62/x
  3. Step 3: Cross multiply
    49,878.78x = 68,833.38 × 28,369.62
  4. Step 4: Simplify right side
    49,878.78x = 1,952,776,833.92
  5. Step 5: Solve for x
    x = 1,952,776,833.92/49,878.78
  6. Step 6: Final answer
    x = 39,150.45

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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.