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Finding the Fourth Proportional to 57,216.80, 85,652.40 and 50,304.80

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Solution

The fourth proportional to 57,216.80, 85,652.40 and 50,304.80 is: 75,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.80 : 85,652.40 = 50,304.80 : x
  2. Step 2: Convert to fraction form
    57,216.80/85,652.40 = 50,304.80/x
  3. Step 3: Cross multiply
    57,216.80x = 85,652.40 × 50,304.80
  4. Step 4: Simplify right side
    57,216.80x = 4,308,726,851.52
  5. Step 5: Solve for x
    x = 4,308,726,851.52/57,216.80
  6. Step 6: Final answer
    x = 75,305.27

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1.5x scale

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.