Home / 87,109.87-120,204.36-48,864.10

Finding the Fourth Proportional to 87,109.87, 120,204.36 and 48,864.10

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Solution

The fourth proportional to 87,109.87, 120,204.36 and 48,864.10 is: 67,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,109.87 : 120,204.36 = 48,864.10 : x
  2. Step 2: Convert to fraction form
    87,109.87/120,204.36 = 48,864.10/x
  3. Step 3: Cross multiply
    87,109.87x = 120,204.36 × 48,864.10
  4. Step 4: Simplify right side
    87,109.87x = 5,873,677,867.48
  5. Step 5: Solve for x
    x = 5,873,677,867.48/87,109.87
  6. Step 6: Final answer
    x = 67,428.39

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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.