Home / 91,409.64-126,140.04-50,571.36

Finding the Fourth Proportional to 91,409.64, 126,140.04 and 50,571.36

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Solution

The fourth proportional to 91,409.64, 126,140.04 and 50,571.36 is: 69,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,409.64 : 126,140.04 = 50,571.36 : x
  2. Step 2: Convert to fraction form
    91,409.64/126,140.04 = 50,571.36/x
  3. Step 3: Cross multiply
    91,409.64x = 126,140.04 × 50,571.36
  4. Step 4: Simplify right side
    91,409.64x = 6,379,073,373.25
  5. Step 5: Solve for x
    x = 6,379,073,373.25/91,409.64
  6. Step 6: Final answer
    x = 69,785.56

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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.