Home / 53,772.30-80,658.45-45,218.70

Finding the Fourth Proportional to 53,772.30, 80,658.45 and 45,218.70

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Solution

The fourth proportional to 53,772.30, 80,658.45 and 45,218.70 is: 67,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,772.30 : 80,658.45 = 45,218.70 : x
  2. Step 2: Convert to fraction form
    53,772.30/80,658.45 = 45,218.70/x
  3. Step 3: Cross multiply
    53,772.30x = 80,658.45 × 45,218.70
  4. Step 4: Simplify right side
    53,772.30x = 3,647,270,253.02
  5. Step 5: Solve for x
    x = 3,647,270,253.02/53,772.30
  6. Step 6: Final answer
    x = 67,828.05

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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.