Home / 53,442.40-80,163.60-20,610.40

Finding the Fourth Proportional to 53,442.40, 80,163.60 and 20,610.40

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Solution

The fourth proportional to 53,442.40, 80,163.60 and 20,610.40 is: 30,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,442.40 : 80,163.60 = 20,610.40 : x
  2. Step 2: Convert to fraction form
    53,442.40/80,163.60 = 20,610.40/x
  3. Step 3: Cross multiply
    53,442.40x = 80,163.60 × 20,610.40
  4. Step 4: Simplify right side
    53,442.40x = 1,652,203,861.44
  5. Step 5: Solve for x
    x = 1,652,203,861.44/53,442.40
  6. Step 6: Final answer
    x = 30,915.60

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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.