Home / 50,718.86-76,078.32-19,120.34

Finding the Fourth Proportional to 50,718.86, 76,078.32 and 19,120.34

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Solution

The fourth proportional to 50,718.86, 76,078.32 and 19,120.34 is: 28,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,718.86 : 76,078.32 = 19,120.34 : x
  2. Step 2: Convert to fraction form
    50,718.86/76,078.32 = 19,120.34/x
  3. Step 3: Cross multiply
    50,718.86x = 76,078.32 × 19,120.34
  4. Step 4: Simplify right side
    50,718.86x = 1,454,643,345.03
  5. Step 5: Solve for x
    x = 1,454,643,345.03/50,718.86
  6. Step 6: Final answer
    x = 28,680.52

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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.