Home / 66,111.96-91,272.66-50,168.52

Finding the Fourth Proportional to 66,111.96, 91,272.66 and 50,168.52

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Solution

The fourth proportional to 66,111.96, 91,272.66 and 50,168.52 is: 69,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,111.96 : 91,272.66 = 50,168.52 : x
  2. Step 2: Convert to fraction form
    66,111.96/91,272.66 = 50,168.52/x
  3. Step 3: Cross multiply
    66,111.96x = 91,272.66 × 50,168.52
  4. Step 4: Simplify right side
    66,111.96x = 4,579,014,268.66
  5. Step 5: Solve for x
    x = 4,579,014,268.66/66,111.96
  6. Step 6: Final answer
    x = 69,261.51

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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.