Home / 50,719.82-76,086.65-21,130.74

Finding the Fourth Proportional to 50,719.82, 76,086.65 and 21,130.74

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Solution

The fourth proportional to 50,719.82, 76,086.65 and 21,130.74 is: 31,698.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,719.82 : 76,086.65 = 21,130.74 : x
  2. Step 2: Convert to fraction form
    50,719.82/76,086.65 = 21,130.74/x
  3. Step 3: Cross multiply
    50,719.82x = 76,086.65 × 21,130.74
  4. Step 4: Simplify right side
    50,719.82x = 1,607,767,112.97
  5. Step 5: Solve for x
    x = 1,607,767,112.97/50,719.82
  6. Step 6: Final answer
    x = 31,698.99

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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.