Home / 77,083.08-115,625.91-27,163.78

Finding the Fourth Proportional to 77,083.08, 115,625.91 and 27,163.78

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Solution

The fourth proportional to 77,083.08, 115,625.91 and 27,163.78 is: 40,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,083.08 : 115,625.91 = 27,163.78 : x
  2. Step 2: Convert to fraction form
    77,083.08/115,625.91 = 27,163.78/x
  3. Step 3: Cross multiply
    77,083.08x = 115,625.91 × 27,163.78
  4. Step 4: Simplify right side
    77,083.08x = 3,140,837,178.14
  5. Step 5: Solve for x
    x = 3,140,837,178.14/77,083.08
  6. Step 6: Final answer
    x = 40,746.13

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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.