Home / 91,100.71-125,718.66-50,814.44

Finding the Fourth Proportional to 91,100.71, 125,718.66 and 50,814.44

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Solution

The fourth proportional to 91,100.71, 125,718.66 and 50,814.44 is: 70,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,100.71 : 125,718.66 = 50,814.44 : x
  2. Step 2: Convert to fraction form
    91,100.71/125,718.66 = 50,814.44/x
  3. Step 3: Cross multiply
    91,100.71x = 125,718.66 × 50,814.44
  4. Step 4: Simplify right side
    91,100.71x = 6,388,323,305.45
  5. Step 5: Solve for x
    x = 6,388,323,305.45/91,100.71
  6. Step 6: Final answer
    x = 70,123.75

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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.