Home / 91,865.40-126,764.82-51,583.61

Finding the Fourth Proportional to 91,865.40, 126,764.82 and 51,583.61

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Solution

The fourth proportional to 91,865.40, 126,764.82 and 51,583.61 is: 71,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,865.40 : 126,764.82 = 51,583.61 : x
  2. Step 2: Convert to fraction form
    91,865.40/126,764.82 = 51,583.61/x
  3. Step 3: Cross multiply
    91,865.40x = 126,764.82 × 51,583.61
  4. Step 4: Simplify right side
    91,865.40x = 6,538,987,036.60
  5. Step 5: Solve for x
    x = 6,538,987,036.60/91,865.40
  6. Step 6: Final answer
    x = 71,180.09

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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.