Home / 49,906.80-74,795.64-20,290.32

Finding the Fourth Proportional to 49,906.80, 74,795.64 and 20,290.32

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Solution

The fourth proportional to 49,906.80, 74,795.64 and 20,290.32 is: 30,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,906.80 : 74,795.64 = 20,290.32 : x
  2. Step 2: Convert to fraction form
    49,906.80/74,795.64 = 20,290.32/x
  3. Step 3: Cross multiply
    49,906.80x = 74,795.64 × 20,290.32
  4. Step 4: Simplify right side
    49,906.80x = 1,517,627,470.20
  5. Step 5: Solve for x
    x = 1,517,627,470.20/49,906.80
  6. Step 6: Final answer
    x = 30,409.23

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1.5x scale

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.