Home / 60,083.16-90,126.82-20,639.96

Finding the Fourth Proportional to 60,083.16, 90,126.82 and 20,639.96

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Solution

The fourth proportional to 60,083.16, 90,126.82 and 20,639.96 is: 30,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,083.16 : 90,126.82 = 20,639.96 : x
  2. Step 2: Convert to fraction form
    60,083.16/90,126.82 = 20,639.96/x
  3. Step 3: Cross multiply
    60,083.16x = 90,126.82 × 20,639.96
  4. Step 4: Simplify right side
    60,083.16x = 1,860,213,959.73
  5. Step 5: Solve for x
    x = 1,860,213,959.73/60,083.16
  6. Step 6: Final answer
    x = 30,960.65

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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.