Home / 84,257.12-116,221.42-64,069.74

Finding the Fourth Proportional to 84,257.12, 116,221.42 and 64,069.74

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Solution

The fourth proportional to 84,257.12, 116,221.42 and 64,069.74 is: 88,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,257.12 : 116,221.42 = 64,069.74 : x
  2. Step 2: Convert to fraction form
    84,257.12/116,221.42 = 64,069.74/x
  3. Step 3: Cross multiply
    84,257.12x = 116,221.42 × 64,069.74
  4. Step 4: Simplify right side
    84,257.12x = 7,446,275,580.72
  5. Step 5: Solve for x
    x = 7,446,275,580.72/84,257.12
  6. Step 6: Final answer
    x = 88,375.63

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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.