Home / 87,837.03-121,216.37-50,111.28

Finding the Fourth Proportional to 87,837.03, 121,216.37 and 50,111.28

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Solution

The fourth proportional to 87,837.03, 121,216.37 and 50,111.28 is: 69,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.03 : 121,216.37 = 50,111.28 : x
  2. Step 2: Convert to fraction form
    87,837.03/121,216.37 = 50,111.28/x
  3. Step 3: Cross multiply
    87,837.03x = 121,216.37 × 50,111.28
  4. Step 4: Simplify right side
    87,837.03x = 6,074,307,207.10
  5. Step 5: Solve for x
    x = 6,074,307,207.10/87,837.03
  6. Step 6: Final answer
    x = 69,154.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.