Home / 50,878.32-70,212.60-28,217.66

Finding the Fourth Proportional to 50,878.32, 70,212.60 and 28,217.66

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Solution

The fourth proportional to 50,878.32, 70,212.60 and 28,217.66 is: 38,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,878.32 : 70,212.60 = 28,217.66 : x
  2. Step 2: Convert to fraction form
    50,878.32/70,212.60 = 28,217.66/x
  3. Step 3: Cross multiply
    50,878.32x = 70,212.60 × 28,217.66
  4. Step 4: Simplify right side
    50,878.32x = 1,981,235,133.43
  5. Step 5: Solve for x
    x = 1,981,235,133.43/50,878.32
  6. Step 6: Final answer
    x = 38,940.66

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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.