Home / 87,410.81-120,623.94-49,171.10

Finding the Fourth Proportional to 87,410.81, 120,623.94 and 49,171.10

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Solution

The fourth proportional to 87,410.81, 120,623.94 and 49,171.10 is: 67,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,410.81 : 120,623.94 = 49,171.10 : x
  2. Step 2: Convert to fraction form
    87,410.81/120,623.94 = 49,171.10/x
  3. Step 3: Cross multiply
    87,410.81x = 120,623.94 × 49,171.10
  4. Step 4: Simplify right side
    87,410.81x = 5,931,211,816.13
  5. Step 5: Solve for x
    x = 5,931,211,816.13/87,410.81
  6. Step 6: Final answer
    x = 67,854.44

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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.