Home / 50,809.12-76,213.70-21,210.82

Finding the Fourth Proportional to 50,809.12, 76,213.70 and 21,210.82

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Solution

The fourth proportional to 50,809.12, 76,213.70 and 21,210.82 is: 31,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,809.12 : 76,213.70 = 21,210.82 : x
  2. Step 2: Convert to fraction form
    50,809.12/76,213.70 = 21,210.82/x
  3. Step 3: Cross multiply
    50,809.12x = 76,213.70 × 21,210.82
  4. Step 4: Simplify right side
    50,809.12x = 1,616,555,072.23
  5. Step 5: Solve for x
    x = 1,616,555,072.23/50,809.12
  6. Step 6: Final answer
    x = 31,816.24

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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.