Home / 50,869.76-70,198.32-28,209.68

Finding the Fourth Proportional to 50,869.76, 70,198.32 and 28,209.68

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Solution

The fourth proportional to 50,869.76, 70,198.32 and 28,209.68 is: 38,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,869.76 : 70,198.32 = 28,209.68 : x
  2. Step 2: Convert to fraction form
    50,869.76/70,198.32 = 28,209.68/x
  3. Step 3: Cross multiply
    50,869.76x = 70,198.32 × 28,209.68
  4. Step 4: Simplify right side
    50,869.76x = 1,980,272,143.74
  5. Step 5: Solve for x
    x = 1,980,272,143.74/50,869.76
  6. Step 6: Final answer
    x = 38,928.28

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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.