Home / 207,612.45-311,418.88-57,853.17

Finding the Fourth Proportional to 207,612.45, 311,418.88 and 57,853.17

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Solution

The fourth proportional to 207,612.45, 311,418.88 and 57,853.17 is: 86,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,612.45 : 311,418.88 = 57,853.17 : x
  2. Step 2: Convert to fraction form
    207,612.45/311,418.88 = 57,853.17/x
  3. Step 3: Cross multiply
    207,612.45x = 311,418.88 × 57,853.17
  4. Step 4: Simplify right side
    207,612.45x = 18,016,569,261.22
  5. Step 5: Solve for x
    x = 18,016,569,261.22/207,612.45
  6. Step 6: Final answer
    x = 86,779.81

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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.