Home / 50,508.30-75,730.05-20,937.90

Finding the Fourth Proportional to 50,508.30, 75,730.05 and 20,937.90

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Solution

The fourth proportional to 50,508.30, 75,730.05 and 20,937.90 is: 31,393.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,508.30 : 75,730.05 = 20,937.90 : x
  2. Step 2: Convert to fraction form
    50,508.30/75,730.05 = 20,937.90/x
  3. Step 3: Cross multiply
    50,508.30x = 75,730.05 × 20,937.90
  4. Step 4: Simplify right side
    50,508.30x = 1,585,628,213.90
  5. Step 5: Solve for x
    x = 1,585,628,213.90/50,508.30
  6. Step 6: Final answer
    x = 31,393.42

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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.