Home / 50,042.32-68,979-39,415.12

Finding the Fourth Proportional to 50,042.32, 68,979 and 39,415.12

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Solution

The fourth proportional to 50,042.32, 68,979 and 39,415.12 is: 54,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,042.32 : 68,979 = 39,415.12 : x
  2. Step 2: Convert to fraction form
    50,042.32/68,979 = 39,415.12/x
  3. Step 3: Cross multiply
    50,042.32x = 68,979 × 39,415.12
  4. Step 4: Simplify right side
    50,042.32x = 2,718,815,562.48
  5. Step 5: Solve for x
    x = 2,718,815,562.48/50,042.32
  6. Step 6: Final answer
    x = 54,330.33

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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.