Home / 50,329.92-75,439.51-20,731.60

Finding the Fourth Proportional to 50,329.92, 75,439.51 and 20,731.60

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Solution

The fourth proportional to 50,329.92, 75,439.51 and 20,731.60 is: 31,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,329.92 : 75,439.51 = 20,731.60 : x
  2. Step 2: Convert to fraction form
    50,329.92/75,439.51 = 20,731.60/x
  3. Step 3: Cross multiply
    50,329.92x = 75,439.51 × 20,731.60
  4. Step 4: Simplify right side
    50,329.92x = 1,563,982,058.47
  5. Step 5: Solve for x
    x = 1,563,982,058.47/50,329.92
  6. Step 6: Final answer
    x = 31,074.60

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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.