Home / 53,894.32-80,809.08-20,616.84

Finding the Fourth Proportional to 53,894.32, 80,809.08 and 20,616.84

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Solution

The fourth proportional to 53,894.32, 80,809.08 and 20,616.84 is: 30,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,894.32 : 80,809.08 = 20,616.84 : x
  2. Step 2: Convert to fraction form
    53,894.32/80,809.08 = 20,616.84/x
  3. Step 3: Cross multiply
    53,894.32x = 80,809.08 × 20,616.84
  4. Step 4: Simplify right side
    53,894.32x = 1,666,027,872.91
  5. Step 5: Solve for x
    x = 1,666,027,872.91/53,894.32
  6. Step 6: Final answer
    x = 30,912.87

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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.