Home / 65,890.38-98,838.32-19,143.26

Finding the Fourth Proportional to 65,890.38, 98,838.32 and 19,143.26

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Solution

The fourth proportional to 65,890.38, 98,838.32 and 19,143.26 is: 28,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890.38 : 98,838.32 = 19,143.26 : x
  2. Step 2: Convert to fraction form
    65,890.38/98,838.32 = 19,143.26/x
  3. Step 3: Cross multiply
    65,890.38x = 98,838.32 × 19,143.26
  4. Step 4: Simplify right side
    65,890.38x = 1,892,087,067.82
  5. Step 5: Solve for x
    x = 1,892,087,067.82/65,890.38
  6. Step 6: Final answer
    x = 28,715.68

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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.