Home / 87,628.80-120,928.51-49,381.02

Finding the Fourth Proportional to 87,628.80, 120,928.51 and 49,381.02

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Solution

The fourth proportional to 87,628.80, 120,928.51 and 49,381.02 is: 68,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.80 : 120,928.51 = 49,381.02 : x
  2. Step 2: Convert to fraction form
    87,628.80/120,928.51 = 49,381.02/x
  3. Step 3: Cross multiply
    87,628.80x = 120,928.51 × 49,381.02
  4. Step 4: Simplify right side
    87,628.80x = 5,971,573,170.88
  5. Step 5: Solve for x
    x = 5,971,573,170.88/87,628.80
  6. Step 6: Final answer
    x = 68,146.24

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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.