Home / 50,816.96-76,213.08-21,218.72

Finding the Fourth Proportional to 50,816.96, 76,213.08 and 21,218.72

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Solution

The fourth proportional to 50,816.96, 76,213.08 and 21,218.72 is: 31,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,816.96 : 76,213.08 = 21,218.72 : x
  2. Step 2: Convert to fraction form
    50,816.96/76,213.08 = 21,218.72/x
  3. Step 3: Cross multiply
    50,816.96x = 76,213.08 × 21,218.72
  4. Step 4: Simplify right side
    50,816.96x = 1,617,144,004.86
  5. Step 5: Solve for x
    x = 1,617,144,004.86/50,816.96
  6. Step 6: Final answer
    x = 31,822.92

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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.