Home / 87,084.40-120,004.44-61,863.28

Finding the Fourth Proportional to 87,084.40, 120,004.44 and 61,863.28

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Solution

The fourth proportional to 87,084.40, 120,004.44 and 61,863.28 is: 85,249.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,084.40 : 120,004.44 = 61,863.28 : x
  2. Step 2: Convert to fraction form
    87,084.40/120,004.44 = 61,863.28/x
  3. Step 3: Cross multiply
    87,084.40x = 120,004.44 × 61,863.28
  4. Step 4: Simplify right side
    87,084.40x = 7,423,868,272.96
  5. Step 5: Solve for x
    x = 7,423,868,272.96/87,084.40
  6. Step 6: Final answer
    x = 85,249.12

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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.