Home / 78,545.68-117,826.70-25,224.19

Finding the Fourth Proportional to 78,545.68, 117,826.70 and 25,224.19

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Solution

The fourth proportional to 78,545.68, 117,826.70 and 25,224.19 is: 37,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,545.68 : 117,826.70 = 25,224.19 : x
  2. Step 2: Convert to fraction form
    78,545.68/117,826.70 = 25,224.19/x
  3. Step 3: Cross multiply
    78,545.68x = 117,826.70 × 25,224.19
  4. Step 4: Simplify right side
    78,545.68x = 2,972,083,067.87
  5. Step 5: Solve for x
    x = 2,972,083,067.87/78,545.68
  6. Step 6: Final answer
    x = 37,838.91

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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.