Home / 53,579.98-80,351.49-21,981.12

Finding the Fourth Proportional to 53,579.98, 80,351.49 and 21,981.12

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Solution

The fourth proportional to 53,579.98, 80,351.49 and 21,981.12 is: 32,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,579.98 : 80,351.49 = 21,981.12 : x
  2. Step 2: Convert to fraction form
    53,579.98/80,351.49 = 21,981.12/x
  3. Step 3: Cross multiply
    53,579.98x = 80,351.49 × 21,981.12
  4. Step 4: Simplify right side
    53,579.98x = 1,766,215,976.96
  5. Step 5: Solve for x
    x = 1,766,215,976.96/53,579.98
  6. Step 6: Final answer
    x = 32,964.10

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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.