Home / 50,905.63-76,388.21-21,320.99

Finding the Fourth Proportional to 50,905.63, 76,388.21 and 21,320.99

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Solution

The fourth proportional to 50,905.63, 76,388.21 and 21,320.99 is: 31,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,905.63 : 76,388.21 = 21,320.99 : x
  2. Step 2: Convert to fraction form
    50,905.63/76,388.21 = 21,320.99/x
  3. Step 3: Cross multiply
    50,905.63x = 76,388.21 × 21,320.99
  4. Step 4: Simplify right side
    50,905.63x = 1,628,672,259.32
  5. Step 5: Solve for x
    x = 1,628,672,259.32/50,905.63
  6. Step 6: Final answer
    x = 31,993.95

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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.