Home / 84,404.40-116,618.45-66,635.43

Finding the Fourth Proportional to 84,404.40, 116,618.45 and 66,635.43

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Solution

The fourth proportional to 84,404.40, 116,618.45 and 66,635.43 is: 92,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,404.40 : 116,618.45 = 66,635.43 : x
  2. Step 2: Convert to fraction form
    84,404.40/116,618.45 = 66,635.43/x
  3. Step 3: Cross multiply
    84,404.40x = 116,618.45 × 66,635.43
  4. Step 4: Simplify right side
    84,404.40x = 7,770,920,228.51
  5. Step 5: Solve for x
    x = 7,770,920,228.51/84,404.40
  6. Step 6: Final answer
    x = 92,067.71

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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.