Home / 48,351.46-72,477.29-20,287.81

Finding the Fourth Proportional to 48,351.46, 72,477.29 and 20,287.81

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Solution

The fourth proportional to 48,351.46, 72,477.29 and 20,287.81 is: 30,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,351.46 : 72,477.29 = 20,287.81 : x
  2. Step 2: Convert to fraction form
    48,351.46/72,477.29 = 20,287.81/x
  3. Step 3: Cross multiply
    48,351.46x = 72,477.29 × 20,287.81
  4. Step 4: Simplify right side
    48,351.46x = 1,470,405,488.83
  5. Step 5: Solve for x
    x = 1,470,405,488.83/48,351.46
  6. Step 6: Final answer
    x = 30,410.78

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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.