Home / 53,590.11-80,366.68-21,991.30

Finding the Fourth Proportional to 53,590.11, 80,366.68 and 21,991.30

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Solution

The fourth proportional to 53,590.11, 80,366.68 and 21,991.30 is: 32,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,590.11 : 80,366.68 = 21,991.30 : x
  2. Step 2: Convert to fraction form
    53,590.11/80,366.68 = 21,991.30/x
  3. Step 3: Cross multiply
    53,590.11x = 80,366.68 × 21,991.30
  4. Step 4: Simplify right side
    53,590.11x = 1,767,367,596.46
  5. Step 5: Solve for x
    x = 1,767,367,596.46/53,590.11
  6. Step 6: Final answer
    x = 32,979.36

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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.