Home / 68,455.96-102,603.14-30,972.12

Finding the Fourth Proportional to 68,455.96, 102,603.14 and 30,972.12

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Solution

The fourth proportional to 68,455.96, 102,603.14 and 30,972.12 is: 46,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,455.96 : 102,603.14 = 30,972.12 : x
  2. Step 2: Convert to fraction form
    68,455.96/102,603.14 = 30,972.12/x
  3. Step 3: Cross multiply
    68,455.96x = 102,603.14 × 30,972.12
  4. Step 4: Simplify right side
    68,455.96x = 3,177,836,764.46
  5. Step 5: Solve for x
    x = 3,177,836,764.46/68,455.96
  6. Step 6: Final answer
    x = 46,421.62

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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.