Home / 53,185.47-79,781.85-18,113.28

Finding the Fourth Proportional to 53,185.47, 79,781.85 and 18,113.28

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Solution

The fourth proportional to 53,185.47, 79,781.85 and 18,113.28 is: 27,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,185.47 : 79,781.85 = 18,113.28 : x
  2. Step 2: Convert to fraction form
    53,185.47/79,781.85 = 18,113.28/x
  3. Step 3: Cross multiply
    53,185.47x = 79,781.85 × 18,113.28
  4. Step 4: Simplify right side
    53,185.47x = 1,445,110,987.97
  5. Step 5: Solve for x
    x = 1,445,110,987.97/53,185.47
  6. Step 6: Final answer
    x = 27,171.16

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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.