Home / 56,076.09-84,128.28-18,636.36

Finding the Fourth Proportional to 56,076.09, 84,128.28 and 18,636.36

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Solution

The fourth proportional to 56,076.09, 84,128.28 and 18,636.36 is: 27,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,076.09 : 84,128.28 = 18,636.36 : x
  2. Step 2: Convert to fraction form
    56,076.09/84,128.28 = 18,636.36/x
  3. Step 3: Cross multiply
    56,076.09x = 84,128.28 × 18,636.36
  4. Step 4: Simplify right side
    56,076.09x = 1,567,844,912.26
  5. Step 5: Solve for x
    x = 1,567,844,912.26/56,076.09
  6. Step 6: Final answer
    x = 27,959.24

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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.