Home / 91,920.92-126,845.98-51,636.38

Finding the Fourth Proportional to 91,920.92, 126,845.98 and 51,636.38

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Solution

The fourth proportional to 91,920.92, 126,845.98 and 51,636.38 is: 71,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,920.92 : 126,845.98 = 51,636.38 : x
  2. Step 2: Convert to fraction form
    91,920.92/126,845.98 = 51,636.38/x
  3. Step 3: Cross multiply
    91,920.92x = 126,845.98 × 51,636.38
  4. Step 4: Simplify right side
    91,920.92x = 6,549,867,224.75
  5. Step 5: Solve for x
    x = 6,549,867,224.75/91,920.92
  6. Step 6: Final answer
    x = 71,255.46

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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.