Home / 56,909.20-85,440.60-36,173.20

Finding the Fourth Proportional to 56,909.20, 85,440.60 and 36,173.20

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Solution

The fourth proportional to 56,909.20, 85,440.60 and 36,173.20 is: 54,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.20 : 85,440.60 = 36,173.20 : x
  2. Step 2: Convert to fraction form
    56,909.20/85,440.60 = 36,173.20/x
  3. Step 3: Cross multiply
    56,909.20x = 85,440.60 × 36,173.20
  4. Step 4: Simplify right side
    56,909.20x = 3,090,659,911.92
  5. Step 5: Solve for x
    x = 3,090,659,911.92/56,909.20
  6. Step 6: Final answer
    x = 54,308.62

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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.