Home / 89,918.42-124,105.55-51,704.69

Finding the Fourth Proportional to 89,918.42, 124,105.55 and 51,704.69

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Solution

The fourth proportional to 89,918.42, 124,105.55 and 51,704.69 is: 71,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,918.42 : 124,105.55 = 51,704.69 : x
  2. Step 2: Convert to fraction form
    89,918.42/124,105.55 = 51,704.69/x
  3. Step 3: Cross multiply
    89,918.42x = 124,105.55 × 51,704.69
  4. Step 4: Simplify right side
    89,918.42x = 6,416,838,110.98
  5. Step 5: Solve for x
    x = 6,416,838,110.98/89,918.42
  6. Step 6: Final answer
    x = 71,362.89

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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.