Home / 88,961.76-122,769-53,151.80

Finding the Fourth Proportional to 88,961.76, 122,769 and 53,151.80

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Solution

The fourth proportional to 88,961.76, 122,769 and 53,151.80 is: 73,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,961.76 : 122,769 = 53,151.80 : x
  2. Step 2: Convert to fraction form
    88,961.76/122,769 = 53,151.80/x
  3. Step 3: Cross multiply
    88,961.76x = 122,769 × 53,151.80
  4. Step 4: Simplify right side
    88,961.76x = 6,525,392,720.36
  5. Step 5: Solve for x
    x = 6,525,392,720.36/88,961.76
  6. Step 6: Final answer
    x = 73,350.54

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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.