Home / 91,936.31-126,869.15-51,100.25

Finding the Fourth Proportional to 91,936.31, 126,869.15 and 51,100.25

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Solution

The fourth proportional to 91,936.31, 126,869.15 and 51,100.25 is: 70,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,936.31 : 126,869.15 = 51,100.25 : x
  2. Step 2: Convert to fraction form
    91,936.31/126,869.15 = 51,100.25/x
  3. Step 3: Cross multiply
    91,936.31x = 126,869.15 × 51,100.25
  4. Step 4: Simplify right side
    91,936.31x = 6,483,044,392.44
  5. Step 5: Solve for x
    x = 6,483,044,392.44/91,936.31
  6. Step 6: Final answer
    x = 70,516.70

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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.