Home / 68,669.84-102,980.28-31,198.52

Finding the Fourth Proportional to 68,669.84, 102,980.28 and 31,198.52

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Solution

The fourth proportional to 68,669.84, 102,980.28 and 31,198.52 is: 46,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669.84 : 102,980.28 = 31,198.52 : x
  2. Step 2: Convert to fraction form
    68,669.84/102,980.28 = 31,198.52/x
  3. Step 3: Cross multiply
    68,669.84x = 102,980.28 × 31,198.52
  4. Step 4: Simplify right side
    68,669.84x = 3,212,832,325.19
  5. Step 5: Solve for x
    x = 3,212,832,325.19/68,669.84
  6. Step 6: Final answer
    x = 46,786.66

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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.