Home / 87,406.28-120,617.16-49,166.58

Finding the Fourth Proportional to 87,406.28, 120,617.16 and 49,166.58

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Solution

The fourth proportional to 87,406.28, 120,617.16 and 49,166.58 is: 67,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,406.28 : 120,617.16 = 49,166.58 : x
  2. Step 2: Convert to fraction form
    87,406.28/120,617.16 = 49,166.58/x
  3. Step 3: Cross multiply
    87,406.28x = 120,617.16 × 49,166.58
  4. Step 4: Simplify right side
    87,406.28x = 5,930,333,246.51
  5. Step 5: Solve for x
    x = 5,930,333,246.51/87,406.28
  6. Step 6: Final answer
    x = 67,847.91

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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.