Home / 50,728.20-70,008.14-28,372.20

Finding the Fourth Proportional to 50,728.20, 70,008.14 and 28,372.20

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Solution

The fourth proportional to 50,728.20, 70,008.14 and 28,372.20 is: 39,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,728.20 : 70,008.14 = 28,372.20 : x
  2. Step 2: Convert to fraction form
    50,728.20/70,008.14 = 28,372.20/x
  3. Step 3: Cross multiply
    50,728.20x = 70,008.14 × 28,372.20
  4. Step 4: Simplify right side
    50,728.20x = 1,986,284,949.71
  5. Step 5: Solve for x
    x = 1,986,284,949.71/50,728.20
  6. Step 6: Final answer
    x = 39,155.44

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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.