Home / 79,981.44-119,831.22-71,293.92

Finding the Fourth Proportional to 79,981.44, 119,831.22 and 71,293.92

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Solution

The fourth proportional to 79,981.44, 119,831.22 and 71,293.92 is: 106,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,981.44 : 119,831.22 = 71,293.92 : x
  2. Step 2: Convert to fraction form
    79,981.44/119,831.22 = 71,293.92/x
  3. Step 3: Cross multiply
    79,981.44x = 119,831.22 × 71,293.92
  4. Step 4: Simplify right side
    79,981.44x = 8,543,237,412.18
  5. Step 5: Solve for x
    x = 8,543,237,412.18/79,981.44
  6. Step 6: Final answer
    x = 106,815.25

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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.