Home / 91,939.40-126,889.16-51,656.27

Finding the Fourth Proportional to 91,939.40, 126,889.16 and 51,656.27

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Solution

The fourth proportional to 91,939.40, 126,889.16 and 51,656.27 is: 71,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.40 : 126,889.16 = 51,656.27 : x
  2. Step 2: Convert to fraction form
    91,939.40/126,889.16 = 51,656.27/x
  3. Step 3: Cross multiply
    91,939.40x = 126,889.16 × 51,656.27
  4. Step 4: Simplify right side
    91,939.40x = 6,554,620,767.97
  5. Step 5: Solve for x
    x = 6,554,620,767.97/91,939.40
  6. Step 6: Final answer
    x = 71,292.84

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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.