Home / 81,027.42-121,457.73-31,094.22

Finding the Fourth Proportional to 81,027.42, 121,457.73 and 31,094.22

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Solution

The fourth proportional to 81,027.42, 121,457.73 and 31,094.22 is: 46,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,027.42 : 121,457.73 = 31,094.22 : x
  2. Step 2: Convert to fraction form
    81,027.42/121,457.73 = 31,094.22/x
  3. Step 3: Cross multiply
    81,027.42x = 121,457.73 × 31,094.22
  4. Step 4: Simplify right side
    81,027.42x = 3,776,633,377.32
  5. Step 5: Solve for x
    x = 3,776,633,377.32/81,027.42
  6. Step 6: Final answer
    x = 46,609.33

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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.