Home / 87,410.41-120,637.04-49,171.57

Finding the Fourth Proportional to 87,410.41, 120,637.04 and 49,171.57

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Solution

The fourth proportional to 87,410.41, 120,637.04 and 49,171.57 is: 67,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,410.41 : 120,637.04 = 49,171.57 : x
  2. Step 2: Convert to fraction form
    87,410.41/120,637.04 = 49,171.57/x
  3. Step 3: Cross multiply
    87,410.41x = 120,637.04 × 49,171.57
  4. Step 4: Simplify right side
    87,410.41x = 5,931,912,478.29
  5. Step 5: Solve for x
    x = 5,931,912,478.29/87,410.41
  6. Step 6: Final answer
    x = 67,862.77

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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.