Home / 89,121.55-122,976.07-53,298.49

Finding the Fourth Proportional to 89,121.55, 122,976.07 and 53,298.49

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Solution

The fourth proportional to 89,121.55, 122,976.07 and 53,298.49 is: 73,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.55 : 122,976.07 = 53,298.49 : x
  2. Step 2: Convert to fraction form
    89,121.55/122,976.07 = 53,298.49/x
  3. Step 3: Cross multiply
    89,121.55x = 122,976.07 × 53,298.49
  4. Step 4: Simplify right side
    89,121.55x = 6,554,438,837.13
  5. Step 5: Solve for x
    x = 6,554,438,837.13/89,121.55
  6. Step 6: Final answer
    x = 73,544.94

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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.