Home / 50,662.60-76,021.26-21,100.84

Finding the Fourth Proportional to 50,662.60, 76,021.26 and 21,100.84

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Solution

The fourth proportional to 50,662.60, 76,021.26 and 21,100.84 is: 31,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,662.60 : 76,021.26 = 21,100.84 : x
  2. Step 2: Convert to fraction form
    50,662.60/76,021.26 = 21,100.84/x
  3. Step 3: Cross multiply
    50,662.60x = 76,021.26 × 21,100.84
  4. Step 4: Simplify right side
    50,662.60x = 1,604,112,443.86
  5. Step 5: Solve for x
    x = 1,604,112,443.86/50,662.60
  6. Step 6: Final answer
    x = 31,662.66

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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.