Home / 53,168.16-79,761-19,899.84

Finding the Fourth Proportional to 53,168.16, 79,761 and 19,899.84

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Solution

The fourth proportional to 53,168.16, 79,761 and 19,899.84 is: 29,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,168.16 : 79,761 = 19,899.84 : x
  2. Step 2: Convert to fraction form
    53,168.16/79,761 = 19,899.84/x
  3. Step 3: Cross multiply
    53,168.16x = 79,761 × 19,899.84
  4. Step 4: Simplify right side
    53,168.16x = 1,587,231,138.24
  5. Step 5: Solve for x
    x = 1,587,231,138.24/53,168.16
  6. Step 6: Final answer
    x = 29,853.04

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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.