Home / 86,645.46-129,912.56-36,079.49

Finding the Fourth Proportional to 86,645.46, 129,912.56 and 36,079.49

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Solution

The fourth proportional to 86,645.46, 129,912.56 and 36,079.49 is: 54,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.46 : 129,912.56 = 36,079.49 : x
  2. Step 2: Convert to fraction form
    86,645.46/129,912.56 = 36,079.49/x
  3. Step 3: Cross multiply
    86,645.46x = 129,912.56 × 36,079.49
  4. Step 4: Simplify right side
    86,645.46x = 4,687,179,189.08
  5. Step 5: Solve for x
    x = 4,687,179,189.08/86,645.46
  6. Step 6: Final answer
    x = 54,096.07

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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.