Home / 86,635.56-119,553.72-54,387.60

Finding the Fourth Proportional to 86,635.56, 119,553.72 and 54,387.60

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Solution

The fourth proportional to 86,635.56, 119,553.72 and 54,387.60 is: 75,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,635.56 : 119,553.72 = 54,387.60 : x
  2. Step 2: Convert to fraction form
    86,635.56/119,553.72 = 54,387.60/x
  3. Step 3: Cross multiply
    86,635.56x = 119,553.72 × 54,387.60
  4. Step 4: Simplify right side
    86,635.56x = 6,502,239,901.87
  5. Step 5: Solve for x
    x = 6,502,239,901.87/86,635.56
  6. Step 6: Final answer
    x = 75,052.78

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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.