Home / 50,980.22-70,350.42-28,320.78

Finding the Fourth Proportional to 50,980.22, 70,350.42 and 28,320.78

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Solution

The fourth proportional to 50,980.22, 70,350.42 and 28,320.78 is: 39,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,980.22 : 70,350.42 = 28,320.78 : x
  2. Step 2: Convert to fraction form
    50,980.22/70,350.42 = 28,320.78/x
  3. Step 3: Cross multiply
    50,980.22x = 70,350.42 × 28,320.78
  4. Step 4: Simplify right side
    50,980.22x = 1,992,378,767.73
  5. Step 5: Solve for x
    x = 1,992,378,767.73/50,980.22
  6. Step 6: Final answer
    x = 39,081.41

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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.