Home / 91,681.40-126,525.57-68,979.73

Finding the Fourth Proportional to 91,681.40, 126,525.57 and 68,979.73

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Solution

The fourth proportional to 91,681.40, 126,525.57 and 68,979.73 is: 95,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,681.40 : 126,525.57 = 68,979.73 : x
  2. Step 2: Convert to fraction form
    91,681.40/126,525.57 = 68,979.73/x
  3. Step 3: Cross multiply
    91,681.40x = 126,525.57 × 68,979.73
  4. Step 4: Simplify right side
    91,681.40x = 8,727,699,656.70
  5. Step 5: Solve for x
    x = 8,727,699,656.70/91,681.40
  6. Step 6: Final answer
    x = 95,195.97

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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.