Home / 48,301.80-72,449.10-20,214.60

Finding the Fourth Proportional to 48,301.80, 72,449.10 and 20,214.60

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Solution

The fourth proportional to 48,301.80, 72,449.10 and 20,214.60 is: 30,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,301.80 : 72,449.10 = 20,214.60 : x
  2. Step 2: Convert to fraction form
    48,301.80/72,449.10 = 20,214.60/x
  3. Step 3: Cross multiply
    48,301.80x = 72,449.10 × 20,214.60
  4. Step 4: Simplify right side
    48,301.80x = 1,464,529,576.86
  5. Step 5: Solve for x
    x = 1,464,529,576.86/48,301.80
  6. Step 6: Final answer
    x = 30,320.39

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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.