Home / 84,087.32-126,131.44-21,757.82

Finding the Fourth Proportional to 84,087.32, 126,131.44 and 21,757.82

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Solution

The fourth proportional to 84,087.32, 126,131.44 and 21,757.82 is: 32,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,087.32 : 126,131.44 = 21,757.82 : x
  2. Step 2: Convert to fraction form
    84,087.32/126,131.44 = 21,757.82/x
  3. Step 3: Cross multiply
    84,087.32x = 126,131.44 × 21,757.82
  4. Step 4: Simplify right side
    84,087.32x = 2,744,345,428.79
  5. Step 5: Solve for x
    x = 2,744,345,428.79/84,087.32
  6. Step 6: Final answer
    x = 32,636.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.