Home / 50,880.32-70,211.04-28,520

Finding the Fourth Proportional to 50,880.32, 70,211.04 and 28,520

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Solution

The fourth proportional to 50,880.32, 70,211.04 and 28,520 is: 39,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,880.32 : 70,211.04 = 28,520 : x
  2. Step 2: Convert to fraction form
    50,880.32/70,211.04 = 28,520/x
  3. Step 3: Cross multiply
    50,880.32x = 70,211.04 × 28,520
  4. Step 4: Simplify right side
    50,880.32x = 2,002,418,860.80
  5. Step 5: Solve for x
    x = 2,002,418,860.80/50,880.32
  6. Step 6: Final answer
    x = 39,355.47

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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.