Home / 48,815.20-73,222.80-30,383.20

Finding the Fourth Proportional to 48,815.20, 73,222.80 and 30,383.20

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Solution

The fourth proportional to 48,815.20, 73,222.80 and 30,383.20 is: 45,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,815.20 : 73,222.80 = 30,383.20 : x
  2. Step 2: Convert to fraction form
    48,815.20/73,222.80 = 30,383.20/x
  3. Step 3: Cross multiply
    48,815.20x = 73,222.80 × 30,383.20
  4. Step 4: Simplify right side
    48,815.20x = 2,224,742,976.96
  5. Step 5: Solve for x
    x = 2,224,742,976.96/48,815.20
  6. Step 6: Final answer
    x = 45,574.80

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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.