Home / 87,402.51-120,611.66-49,161.38

Finding the Fourth Proportional to 87,402.51, 120,611.66 and 49,161.38

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Solution

The fourth proportional to 87,402.51, 120,611.66 and 49,161.38 is: 67,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,402.51 : 120,611.66 = 49,161.38 : x
  2. Step 2: Convert to fraction form
    87,402.51/120,611.66 = 49,161.38/x
  3. Step 3: Cross multiply
    87,402.51x = 120,611.66 × 49,161.38
  4. Step 4: Simplify right side
    87,402.51x = 5,929,434,800.83
  5. Step 5: Solve for x
    x = 5,929,434,800.83/87,402.51
  6. Step 6: Final answer
    x = 67,840.56

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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.