Home / 83,760.24-115,469.64-59,878.20

Finding the Fourth Proportional to 83,760.24, 115,469.64 and 59,878.20

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Solution

The fourth proportional to 83,760.24, 115,469.64 and 59,878.20 is: 82,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,760.24 : 115,469.64 = 59,878.20 : x
  2. Step 2: Convert to fraction form
    83,760.24/115,469.64 = 59,878.20/x
  3. Step 3: Cross multiply
    83,760.24x = 115,469.64 × 59,878.20
  4. Step 4: Simplify right side
    83,760.24x = 6,914,114,197.85
  5. Step 5: Solve for x
    x = 6,914,114,197.85/83,760.24
  6. Step 6: Final answer
    x = 82,546.49

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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.