Home / 68,557.58-102,849.23-31,120.28

Finding the Fourth Proportional to 68,557.58, 102,849.23 and 31,120.28

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Solution

The fourth proportional to 68,557.58, 102,849.23 and 31,120.28 is: 46,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,557.58 : 102,849.23 = 31,120.28 : x
  2. Step 2: Convert to fraction form
    68,557.58/102,849.23 = 31,120.28/x
  3. Step 3: Cross multiply
    68,557.58x = 102,849.23 × 31,120.28
  4. Step 4: Simplify right side
    68,557.58x = 3,200,696,165.54
  5. Step 5: Solve for x
    x = 3,200,696,165.54/68,557.58
  6. Step 6: Final answer
    x = 46,686.25

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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.