Home / 68,948.67-103,428.96-19,028.77

Finding the Fourth Proportional to 68,948.67, 103,428.96 and 19,028.77

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Solution

The fourth proportional to 68,948.67, 103,428.96 and 19,028.77 is: 28,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,948.67 : 103,428.96 = 19,028.77 : x
  2. Step 2: Convert to fraction form
    68,948.67/103,428.96 = 19,028.77/x
  3. Step 3: Cross multiply
    68,948.67x = 103,428.96 × 19,028.77
  4. Step 4: Simplify right side
    68,948.67x = 1,968,125,949.11
  5. Step 5: Solve for x
    x = 1,968,125,949.11/68,948.67
  6. Step 6: Final answer
    x = 28,544.80

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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.