Home / 91,416.33-126,145.82-51,129.09

Finding the Fourth Proportional to 91,416.33, 126,145.82 and 51,129.09

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Solution

The fourth proportional to 91,416.33, 126,145.82 and 51,129.09 is: 70,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,416.33 : 126,145.82 = 51,129.09 : x
  2. Step 2: Convert to fraction form
    91,416.33/126,145.82 = 51,129.09/x
  3. Step 3: Cross multiply
    91,416.33x = 126,145.82 × 51,129.09
  4. Step 4: Simplify right side
    91,416.33x = 6,449,721,111.73
  5. Step 5: Solve for x
    x = 6,449,721,111.73/91,416.33
  6. Step 6: Final answer
    x = 70,553.27

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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.