Home / 81,071.24-121,741.72-50,103.32

Finding the Fourth Proportional to 81,071.24, 121,741.72 and 50,103.32

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Solution

The fourth proportional to 81,071.24, 121,741.72 and 50,103.32 is: 75,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,071.24 : 121,741.72 = 50,103.32 : x
  2. Step 2: Convert to fraction form
    81,071.24/121,741.72 = 50,103.32/x
  3. Step 3: Cross multiply
    81,071.24x = 121,741.72 × 50,103.32
  4. Step 4: Simplify right side
    81,071.24x = 6,099,664,354.51
  5. Step 5: Solve for x
    x = 6,099,664,354.51/81,071.24
  6. Step 6: Final answer
    x = 75,238.33

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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.