Home / 87,923.62-121,267.64-75,679.86

Finding the Fourth Proportional to 87,923.62, 121,267.64 and 75,679.86

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Solution

The fourth proportional to 87,923.62, 121,267.64 and 75,679.86 is: 104,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,923.62 : 121,267.64 = 75,679.86 : x
  2. Step 2: Convert to fraction form
    87,923.62/121,267.64 = 75,679.86/x
  3. Step 3: Cross multiply
    87,923.62x = 121,267.64 × 75,679.86
  4. Step 4: Simplify right side
    87,923.62x = 9,177,518,206.93
  5. Step 5: Solve for x
    x = 9,177,518,206.93/87,923.62
  6. Step 6: Final answer
    x = 104,380.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.