Home / 81,716.04-122,583.96-29,130.84

Finding the Fourth Proportional to 81,716.04, 122,583.96 and 29,130.84

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Solution

The fourth proportional to 81,716.04, 122,583.96 and 29,130.84 is: 43,699.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.04 : 122,583.96 = 29,130.84 : x
  2. Step 2: Convert to fraction form
    81,716.04/122,583.96 = 29,130.84/x
  3. Step 3: Cross multiply
    81,716.04x = 122,583.96 × 29,130.84
  4. Step 4: Simplify right side
    81,716.04x = 3,570,973,725.33
  5. Step 5: Solve for x
    x = 3,570,973,725.33/81,716.04
  6. Step 6: Final answer
    x = 43,699.79

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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.