Home / 91,866.40-126,766.20-51,584.61

Finding the Fourth Proportional to 91,866.40, 126,766.20 and 51,584.61

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Solution

The fourth proportional to 91,866.40, 126,766.20 and 51,584.61 is: 71,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,866.40 : 126,766.20 = 51,584.61 : x
  2. Step 2: Convert to fraction form
    91,866.40/126,766.20 = 51,584.61/x
  3. Step 3: Cross multiply
    91,866.40x = 126,766.20 × 51,584.61
  4. Step 4: Simplify right side
    91,866.40x = 6,539,184,988.18
  5. Step 5: Solve for x
    x = 6,539,184,988.18/91,866.40
  6. Step 6: Final answer
    x = 71,181.47

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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.