Home / 49,921.20-74,838.02-18,778.32

Finding the Fourth Proportional to 49,921.20, 74,838.02 and 18,778.32

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Solution

The fourth proportional to 49,921.20, 74,838.02 and 18,778.32 is: 28,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.20 : 74,838.02 = 18,778.32 : x
  2. Step 2: Convert to fraction form
    49,921.20/74,838.02 = 18,778.32/x
  3. Step 3: Cross multiply
    49,921.20x = 74,838.02 × 18,778.32
  4. Step 4: Simplify right side
    49,921.20x = 1,405,332,287.73
  5. Step 5: Solve for x
    x = 1,405,332,287.73/49,921.20
  6. Step 6: Final answer
    x = 28,151.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.