Home / 90,644.48-125,107.27-57,917.96

Finding the Fourth Proportional to 90,644.48, 125,107.27 and 57,917.96

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Solution

The fourth proportional to 90,644.48, 125,107.27 and 57,917.96 is: 79,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,644.48 : 125,107.27 = 57,917.96 : x
  2. Step 2: Convert to fraction form
    90,644.48/125,107.27 = 57,917.96/x
  3. Step 3: Cross multiply
    90,644.48x = 125,107.27 × 57,917.96
  4. Step 4: Simplify right side
    90,644.48x = 7,245,957,089.24
  5. Step 5: Solve for x
    x = 7,245,957,089.24/90,644.48
  6. Step 6: Final answer
    x = 79,938.21

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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.