Home / 89,121.96-122,984.55-53,290.80

Finding the Fourth Proportional to 89,121.96, 122,984.55 and 53,290.80

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Solution

The fourth proportional to 89,121.96, 122,984.55 and 53,290.80 is: 73,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.96 : 122,984.55 = 53,290.80 : x
  2. Step 2: Convert to fraction form
    89,121.96/122,984.55 = 53,290.80/x
  3. Step 3: Cross multiply
    89,121.96x = 122,984.55 × 53,290.80
  4. Step 4: Simplify right side
    89,121.96x = 6,553,945,057.14
  5. Step 5: Solve for x
    x = 6,553,945,057.14/89,121.96
  6. Step 6: Final answer
    x = 73,539.06

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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.