Home / 68,905.38-95,086.35-38,690.19

Finding the Fourth Proportional to 68,905.38, 95,086.35 and 38,690.19

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Solution

The fourth proportional to 68,905.38, 95,086.35 and 38,690.19 is: 53,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905.38 : 95,086.35 = 38,690.19 : x
  2. Step 2: Convert to fraction form
    68,905.38/95,086.35 = 38,690.19/x
  3. Step 3: Cross multiply
    68,905.38x = 95,086.35 × 38,690.19
  4. Step 4: Simplify right side
    68,905.38x = 3,678,908,947.91
  5. Step 5: Solve for x
    x = 3,678,908,947.91/68,905.38
  6. Step 6: Final answer
    x = 53,390.74

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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.