Home / 68,896.72-103,347.04-18,977.52

Finding the Fourth Proportional to 68,896.72, 103,347.04 and 18,977.52

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Solution

The fourth proportional to 68,896.72, 103,347.04 and 18,977.52 is: 28,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,896.72 : 103,347.04 = 18,977.52 : x
  2. Step 2: Convert to fraction form
    68,896.72/103,347.04 = 18,977.52/x
  3. Step 3: Cross multiply
    68,896.72x = 103,347.04 × 18,977.52
  4. Step 4: Simplify right side
    68,896.72x = 1,961,270,518.54
  5. Step 5: Solve for x
    x = 1,961,270,518.54/68,896.72
  6. Step 6: Final answer
    x = 28,466.82

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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.