Home / 53,189.84-79,788.54-21,584.72

Finding the Fourth Proportional to 53,189.84, 79,788.54 and 21,584.72

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Solution

The fourth proportional to 53,189.84, 79,788.54 and 21,584.72 is: 32,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.84 : 79,788.54 = 21,584.72 : x
  2. Step 2: Convert to fraction form
    53,189.84/79,788.54 = 21,584.72/x
  3. Step 3: Cross multiply
    53,189.84x = 79,788.54 × 21,584.72
  4. Step 4: Simplify right side
    53,189.84x = 1,722,213,295.11
  5. Step 5: Solve for x
    x = 1,722,213,295.11/53,189.84
  6. Step 6: Final answer
    x = 32,378.61

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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.