Home / 91,945.73-126,885.21-51,659.46

Finding the Fourth Proportional to 91,945.73, 126,885.21 and 51,659.46

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Solution

The fourth proportional to 91,945.73, 126,885.21 and 51,659.46 is: 71,290.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,945.73 : 126,885.21 = 51,659.46 : x
  2. Step 2: Convert to fraction form
    91,945.73/126,885.21 = 51,659.46/x
  3. Step 3: Cross multiply
    91,945.73x = 126,885.21 × 51,659.46
  4. Step 4: Simplify right side
    91,945.73x = 6,554,822,003.27
  5. Step 5: Solve for x
    x = 6,554,822,003.27/91,945.73
  6. Step 6: Final answer
    x = 71,290.12

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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.