Home / 87,161.94-120,283.45-49,436.19

Finding the Fourth Proportional to 87,161.94, 120,283.45 and 49,436.19

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Solution

The fourth proportional to 87,161.94, 120,283.45 and 49,436.19 is: 68,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,161.94 : 120,283.45 = 49,436.19 : x
  2. Step 2: Convert to fraction form
    87,161.94/120,283.45 = 49,436.19/x
  3. Step 3: Cross multiply
    87,161.94x = 120,283.45 × 49,436.19
  4. Step 4: Simplify right side
    87,161.94x = 5,946,355,364.47
  5. Step 5: Solve for x
    x = 5,946,355,364.47/87,161.94
  6. Step 6: Final answer
    x = 68,221.93

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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.