Home / 85,191.86-127,787.79-53,961.50

Finding the Fourth Proportional to 85,191.86, 127,787.79 and 53,961.50

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Solution

The fourth proportional to 85,191.86, 127,787.79 and 53,961.50 is: 80,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,191.86 : 127,787.79 = 53,961.50 : x
  2. Step 2: Convert to fraction form
    85,191.86/127,787.79 = 53,961.50/x
  3. Step 3: Cross multiply
    85,191.86x = 127,787.79 × 53,961.50
  4. Step 4: Simplify right side
    85,191.86x = 6,895,620,830.09
  5. Step 5: Solve for x
    x = 6,895,620,830.09/85,191.86
  6. Step 6: Final answer
    x = 80,942.25

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Double scale
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Similar ratio
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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.