Home / 50,716.20-76,074.30-21,124.20

Finding the Fourth Proportional to 50,716.20, 76,074.30 and 21,124.20

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Solution

The fourth proportional to 50,716.20, 76,074.30 and 21,124.20 is: 31,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,716.20 : 76,074.30 = 21,124.20 : x
  2. Step 2: Convert to fraction form
    50,716.20/76,074.30 = 21,124.20/x
  3. Step 3: Cross multiply
    50,716.20x = 76,074.30 × 21,124.20
  4. Step 4: Simplify right side
    50,716.20x = 1,607,008,728.06
  5. Step 5: Solve for x
    x = 1,607,008,728.06/50,716.20
  6. Step 6: Final answer
    x = 31,686.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.