Home / 84,404.15-116,618.10-66,635.18

Finding the Fourth Proportional to 84,404.15, 116,618.10 and 66,635.18

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Solution

The fourth proportional to 84,404.15, 116,618.10 and 66,635.18 is: 92,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,404.15 : 116,618.10 = 66,635.18 : x
  2. Step 2: Convert to fraction form
    84,404.15/116,618.10 = 66,635.18/x
  3. Step 3: Cross multiply
    84,404.15x = 116,618.10 × 66,635.18
  4. Step 4: Simplify right side
    84,404.15x = 7,770,868,084.76
  5. Step 5: Solve for x
    x = 7,770,868,084.76/84,404.15
  6. Step 6: Final answer
    x = 92,067.37

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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.