Home / 83,836.56-115,635.87-56,932.36

Finding the Fourth Proportional to 83,836.56, 115,635.87 and 56,932.36

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Solution

The fourth proportional to 83,836.56, 115,635.87 and 56,932.36 is: 78,526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,836.56 : 115,635.87 = 56,932.36 : x
  2. Step 2: Convert to fraction form
    83,836.56/115,635.87 = 56,932.36/x
  3. Step 3: Cross multiply
    83,836.56x = 115,635.87 × 56,932.36
  4. Step 4: Simplify right side
    83,836.56x = 6,583,422,979.75
  5. Step 5: Solve for x
    x = 6,583,422,979.75/83,836.56
  6. Step 6: Final answer
    x = 78,526.87

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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.