Home / 67,317.92-100,945.84-19,916.06

Finding the Fourth Proportional to 67,317.92, 100,945.84 and 19,916.06

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Solution

The fourth proportional to 67,317.92, 100,945.84 and 19,916.06 is: 29,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,317.92 : 100,945.84 = 19,916.06 : x
  2. Step 2: Convert to fraction form
    67,317.92/100,945.84 = 19,916.06/x
  3. Step 3: Cross multiply
    67,317.92x = 100,945.84 × 19,916.06
  4. Step 4: Simplify right side
    67,317.92x = 2,010,443,834.53
  5. Step 5: Solve for x
    x = 2,010,443,834.53/67,317.92
  6. Step 6: Final answer
    x = 29,864.91

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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.