Home / 53,109.85-79,664.78-19,832.52

Finding the Fourth Proportional to 53,109.85, 79,664.78 and 19,832.52

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Solution

The fourth proportional to 53,109.85, 79,664.78 and 19,832.52 is: 29,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,109.85 : 79,664.78 = 19,832.52 : x
  2. Step 2: Convert to fraction form
    53,109.85/79,664.78 = 19,832.52/x
  3. Step 3: Cross multiply
    53,109.85x = 79,664.78 × 19,832.52
  4. Step 4: Simplify right side
    53,109.85x = 1,579,953,342.65
  5. Step 5: Solve for x
    x = 1,579,953,342.65/53,109.85
  6. Step 6: Final answer
    x = 29,748.78

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Similar ratio
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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.