Home / 50,816.80-76,233.30-21,219.40

Finding the Fourth Proportional to 50,816.80, 76,233.30 and 21,219.40

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Solution

The fourth proportional to 50,816.80, 76,233.30 and 21,219.40 is: 31,832.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,816.80 : 76,233.30 = 21,219.40 : x
  2. Step 2: Convert to fraction form
    50,816.80/76,233.30 = 21,219.40/x
  3. Step 3: Cross multiply
    50,816.80x = 76,233.30 × 21,219.40
  4. Step 4: Simplify right side
    50,816.80x = 1,617,624,886.02
  5. Step 5: Solve for x
    x = 1,617,624,886.02/50,816.80
  6. Step 6: Final answer
    x = 31,832.48

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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.