Home / 82,811.90-124,217.85-57,799.10

Finding the Fourth Proportional to 82,811.90, 124,217.85 and 57,799.10

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Solution

The fourth proportional to 82,811.90, 124,217.85 and 57,799.10 is: 86,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,811.90 : 124,217.85 = 57,799.10 : x
  2. Step 2: Convert to fraction form
    82,811.90/124,217.85 = 57,799.10/x
  3. Step 3: Cross multiply
    82,811.90x = 124,217.85 × 57,799.10
  4. Step 4: Simplify right side
    82,811.90x = 7,179,679,933.94
  5. Step 5: Solve for x
    x = 7,179,679,933.94/82,811.90
  6. Step 6: Final answer
    x = 86,698.65

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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.