Home / 48,756.36-73,145.88-20,678.79

Finding the Fourth Proportional to 48,756.36, 73,145.88 and 20,678.79

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Solution

The fourth proportional to 48,756.36, 73,145.88 and 20,678.79 is: 31,022.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,756.36 : 73,145.88 = 20,678.79 : x
  2. Step 2: Convert to fraction form
    48,756.36/73,145.88 = 20,678.79/x
  3. Step 3: Cross multiply
    48,756.36x = 73,145.88 × 20,678.79
  4. Step 4: Simplify right side
    48,756.36x = 1,512,568,291.89
  5. Step 5: Solve for x
    x = 1,512,568,291.89/48,756.36
  6. Step 6: Final answer
    x = 31,022.99

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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.