Home / 56,906.30-85,359.45-39,191.60

Finding the Fourth Proportional to 56,906.30, 85,359.45 and 39,191.60

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Solution

The fourth proportional to 56,906.30, 85,359.45 and 39,191.60 is: 58,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.30 : 85,359.45 = 39,191.60 : x
  2. Step 2: Convert to fraction form
    56,906.30/85,359.45 = 39,191.60/x
  3. Step 3: Cross multiply
    56,906.30x = 85,359.45 × 39,191.60
  4. Step 4: Simplify right side
    56,906.30x = 3,345,373,420.62
  5. Step 5: Solve for x
    x = 3,345,373,420.62/56,906.30
  6. Step 6: Final answer
    x = 58,787.40

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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.