Home / 58,084.29-87,137.78-20,647.17

Finding the Fourth Proportional to 58,084.29, 87,137.78 and 20,647.17

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Solution

The fourth proportional to 58,084.29, 87,137.78 and 20,647.17 is: 30,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,084.29 : 87,137.78 = 20,647.17 : x
  2. Step 2: Convert to fraction form
    58,084.29/87,137.78 = 20,647.17/x
  3. Step 3: Cross multiply
    58,084.29x = 87,137.78 × 20,647.17
  4. Step 4: Simplify right side
    58,084.29x = 1,799,148,453.85
  5. Step 5: Solve for x
    x = 1,799,148,453.85/58,084.29
  6. Step 6: Final answer
    x = 30,974.79

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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.