Home / 77,545.68-115,793.22-61,571.46

Finding the Fourth Proportional to 77,545.68, 115,793.22 and 61,571.46

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Solution

The fourth proportional to 77,545.68, 115,793.22 and 61,571.46 is: 91,940.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,545.68 : 115,793.22 = 61,571.46 : x
  2. Step 2: Convert to fraction form
    77,545.68/115,793.22 = 61,571.46/x
  3. Step 3: Cross multiply
    77,545.68x = 115,793.22 × 61,571.46
  4. Step 4: Simplify right side
    77,545.68x = 7,129,557,816.83
  5. Step 5: Solve for x
    x = 7,129,557,816.83/77,545.68
  6. Step 6: Final answer
    x = 91,940.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.