Home / 89,121.62-122,976.14-53,298.56

Finding the Fourth Proportional to 89,121.62, 122,976.14 and 53,298.56

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Solution

The fourth proportional to 89,121.62, 122,976.14 and 53,298.56 is: 73,545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.62 : 122,976.14 = 53,298.56 : x
  2. Step 2: Convert to fraction form
    89,121.62/122,976.14 = 53,298.56/x
  3. Step 3: Cross multiply
    89,121.62x = 122,976.14 × 53,298.56
  4. Step 4: Simplify right side
    89,121.62x = 6,554,450,294.98
  5. Step 5: Solve for x
    x = 6,554,450,294.98/89,121.62
  6. Step 6: Final answer
    x = 73,545.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.