Home / 85,882.24-128,761.08-57,732.47

Finding the Fourth Proportional to 85,882.24, 128,761.08 and 57,732.47

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Solution

The fourth proportional to 85,882.24, 128,761.08 and 57,732.47 is: 86,556.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,882.24 : 128,761.08 = 57,732.47 : x
  2. Step 2: Convert to fraction form
    85,882.24/128,761.08 = 57,732.47/x
  3. Step 3: Cross multiply
    85,882.24x = 128,761.08 × 57,732.47
  4. Step 4: Simplify right side
    85,882.24x = 7,433,695,188.27
  5. Step 5: Solve for x
    x = 7,433,695,188.27/85,882.24
  6. Step 6: Final answer
    x = 86,556.84

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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.