Home / 56,639.20-78,154.32-32,766.88

Finding the Fourth Proportional to 56,639.20, 78,154.32 and 32,766.88

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Solution

The fourth proportional to 56,639.20, 78,154.32 and 32,766.88 is: 45,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.20 : 78,154.32 = 32,766.88 : x
  2. Step 2: Convert to fraction form
    56,639.20/78,154.32 = 32,766.88/x
  3. Step 3: Cross multiply
    56,639.20x = 78,154.32 × 32,766.88
  4. Step 4: Simplify right side
    56,639.20x = 2,560,873,224.92
  5. Step 5: Solve for x
    x = 2,560,873,224.92/56,639.20
  6. Step 6: Final answer
    x = 45,213.80

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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.