Home / 56,687.20-84,928.40-50,133.60

Finding the Fourth Proportional to 56,687.20, 84,928.40 and 50,133.60

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Solution

The fourth proportional to 56,687.20, 84,928.40 and 50,133.60 is: 75,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.20 : 84,928.40 = 50,133.60 : x
  2. Step 2: Convert to fraction form
    56,687.20/84,928.40 = 50,133.60/x
  3. Step 3: Cross multiply
    56,687.20x = 84,928.40 × 50,133.60
  4. Step 4: Simplify right side
    56,687.20x = 4,257,766,434.24
  5. Step 5: Solve for x
    x = 4,257,766,434.24/56,687.20
  6. Step 6: Final answer
    x = 75,109.84

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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.