Home / 80,923.40-121,356.30-36,571.40

Finding the Fourth Proportional to 80,923.40, 121,356.30 and 36,571.40

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Solution

The fourth proportional to 80,923.40, 121,356.30 and 36,571.40 is: 54,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923.40 : 121,356.30 = 36,571.40 : x
  2. Step 2: Convert to fraction form
    80,923.40/121,356.30 = 36,571.40/x
  3. Step 3: Cross multiply
    80,923.40x = 121,356.30 × 36,571.40
  4. Step 4: Simplify right side
    80,923.40x = 4,438,169,789.82
  5. Step 5: Solve for x
    x = 4,438,169,789.82/80,923.40
  6. Step 6: Final answer
    x = 54,844.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.