Home / 87,283.64-120,451.57-49,557.89

Finding the Fourth Proportional to 87,283.64, 120,451.57 and 49,557.89

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Solution

The fourth proportional to 87,283.64, 120,451.57 and 49,557.89 is: 68,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,283.64 : 120,451.57 = 49,557.89 : x
  2. Step 2: Convert to fraction form
    87,283.64/120,451.57 = 49,557.89/x
  3. Step 3: Cross multiply
    87,283.64x = 120,451.57 × 49,557.89
  4. Step 4: Simplify right side
    87,283.64x = 5,969,325,656.39
  5. Step 5: Solve for x
    x = 5,969,325,656.39/87,283.64
  6. Step 6: Final answer
    x = 68,389.97

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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.