Home / 48,921.40-73,295.70-30,431.80

Finding the Fourth Proportional to 48,921.40, 73,295.70 and 30,431.80

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Solution

The fourth proportional to 48,921.40, 73,295.70 and 30,431.80 is: 45,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,921.40 : 73,295.70 = 30,431.80 : x
  2. Step 2: Convert to fraction form
    48,921.40/73,295.70 = 30,431.80/x
  3. Step 3: Cross multiply
    48,921.40x = 73,295.70 × 30,431.80
  4. Step 4: Simplify right side
    48,921.40x = 2,230,520,083.26
  5. Step 5: Solve for x
    x = 2,230,520,083.26/48,921.40
  6. Step 6: Final answer
    x = 45,593.95

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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.