Home / 89,245.09-133,824.54-51,814.60

Finding the Fourth Proportional to 89,245.09, 133,824.54 and 51,814.60

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Solution

The fourth proportional to 89,245.09, 133,824.54 and 51,814.60 is: 77,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,245.09 : 133,824.54 = 51,814.60 : x
  2. Step 2: Convert to fraction form
    89,245.09/133,824.54 = 51,814.60/x
  3. Step 3: Cross multiply
    89,245.09x = 133,824.54 × 51,814.60
  4. Step 4: Simplify right side
    89,245.09x = 6,934,065,010.28
  5. Step 5: Solve for x
    x = 6,934,065,010.28/89,245.09
  6. Step 6: Final answer
    x = 77,696.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.