Home / 87,669.96-120,982.12-49,429.18

Finding the Fourth Proportional to 87,669.96, 120,982.12 and 49,429.18

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Solution

The fourth proportional to 87,669.96, 120,982.12 and 49,429.18 is: 68,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,669.96 : 120,982.12 = 49,429.18 : x
  2. Step 2: Convert to fraction form
    87,669.96/120,982.12 = 49,429.18/x
  3. Step 3: Cross multiply
    87,669.96x = 120,982.12 × 49,429.18
  4. Step 4: Simplify right side
    87,669.96x = 5,980,046,611.43
  5. Step 5: Solve for x
    x = 5,980,046,611.43/87,669.96
  6. Step 6: Final answer
    x = 68,210.90

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1.5x scale

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.