Home / 76,128.57-114,193.62-34,010.82

Finding the Fourth Proportional to 76,128.57, 114,193.62 and 34,010.82

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Solution

The fourth proportional to 76,128.57, 114,193.62 and 34,010.82 is: 51,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128.57 : 114,193.62 = 34,010.82 : x
  2. Step 2: Convert to fraction form
    76,128.57/114,193.62 = 34,010.82/x
  3. Step 3: Cross multiply
    76,128.57x = 114,193.62 × 34,010.82
  4. Step 4: Simplify right side
    76,128.57x = 3,883,818,654.97
  5. Step 5: Solve for x
    x = 3,883,818,654.97/76,128.57
  6. Step 6: Final answer
    x = 51,016.57

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1.5x scale

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.