Home / 91,761.13-126,629.58-51,474.01

Finding the Fourth Proportional to 91,761.13, 126,629.58 and 51,474.01

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Solution

The fourth proportional to 91,761.13, 126,629.58 and 51,474.01 is: 71,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,761.13 : 126,629.58 = 51,474.01 : x
  2. Step 2: Convert to fraction form
    91,761.13/126,629.58 = 51,474.01/x
  3. Step 3: Cross multiply
    91,761.13x = 126,629.58 × 51,474.01
  4. Step 4: Simplify right side
    91,761.13x = 6,518,131,735.41
  5. Step 5: Solve for x
    x = 6,518,131,735.41/91,761.13
  6. Step 6: Final answer
    x = 71,033.69

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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.