Home / 50,455.52-75,683.29-20,840.80

Finding the Fourth Proportional to 50,455.52, 75,683.29 and 20,840.80

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Solution

The fourth proportional to 50,455.52, 75,683.29 and 20,840.80 is: 31,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,455.52 : 75,683.29 = 20,840.80 : x
  2. Step 2: Convert to fraction form
    50,455.52/75,683.29 = 20,840.80/x
  3. Step 3: Cross multiply
    50,455.52x = 75,683.29 × 20,840.80
  4. Step 4: Simplify right side
    50,455.52x = 1,577,300,310.23
  5. Step 5: Solve for x
    x = 1,577,300,310.23/50,455.52
  6. Step 6: Final answer
    x = 31,261.20

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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.