Home / 91,919.41-126,843.92-51,634.87

Finding the Fourth Proportional to 91,919.41, 126,843.92 and 51,634.87

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Solution

The fourth proportional to 91,919.41, 126,843.92 and 51,634.87 is: 71,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,919.41 : 126,843.92 = 51,634.87 : x
  2. Step 2: Convert to fraction form
    91,919.41/126,843.92 = 51,634.87/x
  3. Step 3: Cross multiply
    91,919.41x = 126,843.92 × 51,634.87
  4. Step 4: Simplify right side
    91,919.41x = 6,549,569,061.32
  5. Step 5: Solve for x
    x = 6,549,569,061.32/91,919.41
  6. Step 6: Final answer
    x = 71,253.38

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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.