Home / 58,185.38-87,284.91-20,750.78

Finding the Fourth Proportional to 58,185.38, 87,284.91 and 20,750.78

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Solution

The fourth proportional to 58,185.38, 87,284.91 and 20,750.78 is: 31,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,185.38 : 87,284.91 = 20,750.78 : x
  2. Step 2: Convert to fraction form
    58,185.38/87,284.91 = 20,750.78/x
  3. Step 3: Cross multiply
    58,185.38x = 87,284.91 × 20,750.78
  4. Step 4: Simplify right side
    58,185.38x = 1,811,229,964.73
  5. Step 5: Solve for x
    x = 1,811,229,964.73/58,185.38
  6. Step 6: Final answer
    x = 31,128.61

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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.