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Finding the Fourth Proportional to 79,879.68, 119,831.04 and 24,480

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Solution

The fourth proportional to 79,879.68, 119,831.04 and 24,480 is: 36,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,879.68 : 119,831.04 = 24,480 : x
  2. Step 2: Convert to fraction form
    79,879.68/119,831.04 = 24,480/x
  3. Step 3: Cross multiply
    79,879.68x = 119,831.04 × 24,480
  4. Step 4: Simplify right side
    79,879.68x = 2,933,463,859.20
  5. Step 5: Solve for x
    x = 2,933,463,859.20/79,879.68
  6. Step 6: Final answer
    x = 36,723.53

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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.