Home / 85,310.26-127,910.64-35,424.79

Finding the Fourth Proportional to 85,310.26, 127,910.64 and 35,424.79

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Solution

The fourth proportional to 85,310.26, 127,910.64 and 35,424.79 is: 53,114.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.26 : 127,910.64 = 35,424.79 : x
  2. Step 2: Convert to fraction form
    85,310.26/127,910.64 = 35,424.79/x
  3. Step 3: Cross multiply
    85,310.26x = 127,910.64 × 35,424.79
  4. Step 4: Simplify right side
    85,310.26x = 4,531,207,560.77
  5. Step 5: Solve for x
    x = 4,531,207,560.77/85,310.26
  6. Step 6: Final answer
    x = 53,114.45

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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.