Home / 50,719.97-76,086.87-21,130.88

Finding the Fourth Proportional to 50,719.97, 76,086.87 and 21,130.88

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Solution

The fourth proportional to 50,719.97, 76,086.87 and 21,130.88 is: 31,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,719.97 : 76,086.87 = 21,130.88 : x
  2. Step 2: Convert to fraction form
    50,719.97/76,086.87 = 21,130.88/x
  3. Step 3: Cross multiply
    50,719.97x = 76,086.87 × 21,130.88
  4. Step 4: Simplify right side
    50,719.97x = 1,607,782,119.30
  5. Step 5: Solve for x
    x = 1,607,782,119.30/50,719.97
  6. Step 6: Final answer
    x = 31,699.19

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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.