Home / 50,747.60-76,121.40-21,155.60

Finding the Fourth Proportional to 50,747.60, 76,121.40 and 21,155.60

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Solution

The fourth proportional to 50,747.60, 76,121.40 and 21,155.60 is: 31,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,747.60 : 76,121.40 = 21,155.60 : x
  2. Step 2: Convert to fraction form
    50,747.60/76,121.40 = 21,155.60/x
  3. Step 3: Cross multiply
    50,747.60x = 76,121.40 × 21,155.60
  4. Step 4: Simplify right side
    50,747.60x = 1,610,393,889.84
  5. Step 5: Solve for x
    x = 1,610,393,889.84/50,747.60
  6. Step 6: Final answer
    x = 31,733.40

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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.