Home / 49,743.20-74,887.14-45,388.64

Finding the Fourth Proportional to 49,743.20, 74,887.14 and 45,388.64

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Solution

The fourth proportional to 49,743.20, 74,887.14 and 45,388.64 is: 68,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,743.20 : 74,887.14 = 45,388.64 : x
  2. Step 2: Convert to fraction form
    49,743.20/74,887.14 = 45,388.64/x
  3. Step 3: Cross multiply
    49,743.20x = 74,887.14 × 45,388.64
  4. Step 4: Simplify right side
    49,743.20x = 3,399,025,438.09
  5. Step 5: Solve for x
    x = 3,399,025,438.09/49,743.20
  6. Step 6: Final answer
    x = 68,331.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.