Home / 91,778.26-126,653.22-51,491.16

Finding the Fourth Proportional to 91,778.26, 126,653.22 and 51,491.16

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Solution

The fourth proportional to 91,778.26, 126,653.22 and 51,491.16 is: 71,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,778.26 : 126,653.22 = 51,491.16 : x
  2. Step 2: Convert to fraction form
    91,778.26/126,653.22 = 51,491.16/x
  3. Step 3: Cross multiply
    91,778.26x = 126,653.22 × 51,491.16
  4. Step 4: Simplify right side
    91,778.26x = 6,521,521,215.54
  5. Step 5: Solve for x
    x = 6,521,521,215.54/91,778.26
  6. Step 6: Final answer
    x = 71,057.36

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1.5x scale

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.