Home / 84,584.05-116,459.69-71,811.97

Finding the Fourth Proportional to 84,584.05, 116,459.69 and 71,811.97

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Solution

The fourth proportional to 84,584.05, 116,459.69 and 71,811.97 is: 98,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,584.05 : 116,459.69 = 71,811.97 : x
  2. Step 2: Convert to fraction form
    84,584.05/116,459.69 = 71,811.97/x
  3. Step 3: Cross multiply
    84,584.05x = 116,459.69 × 71,811.97
  4. Step 4: Simplify right side
    84,584.05x = 8,363,199,114.28
  5. Step 5: Solve for x
    x = 8,363,199,114.28/84,584.05
  6. Step 6: Final answer
    x = 98,874.43

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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.