Home / 91,979.75-126,766.72-68,064.91

Finding the Fourth Proportional to 91,979.75, 126,766.72 and 68,064.91

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Solution

The fourth proportional to 91,979.75, 126,766.72 and 68,064.91 is: 93,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,979.75 : 126,766.72 = 68,064.91 : x
  2. Step 2: Convert to fraction form
    91,979.75/126,766.72 = 68,064.91/x
  3. Step 3: Cross multiply
    91,979.75x = 126,766.72 × 68,064.91
  4. Step 4: Simplify right side
    91,979.75x = 8,628,365,155.96
  5. Step 5: Solve for x
    x = 8,628,365,155.96/91,979.75
  6. Step 6: Final answer
    x = 93,807.22

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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.