Home / 49,981.53-68,963.40-28,760.80

Finding the Fourth Proportional to 49,981.53, 68,963.40 and 28,760.80

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Solution

The fourth proportional to 49,981.53, 68,963.40 and 28,760.80 is: 39,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,981.53 : 68,963.40 = 28,760.80 : x
  2. Step 2: Convert to fraction form
    49,981.53/68,963.40 = 28,760.80/x
  3. Step 3: Cross multiply
    49,981.53x = 68,963.40 × 28,760.80
  4. Step 4: Simplify right side
    49,981.53x = 1,983,442,317.66
  5. Step 5: Solve for x
    x = 1,983,442,317.66/49,981.53
  6. Step 6: Final answer
    x = 39,683.50

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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.