Home / 81,459.48-122,208.66-28,873.56

Finding the Fourth Proportional to 81,459.48, 122,208.66 and 28,873.56

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Solution

The fourth proportional to 81,459.48, 122,208.66 and 28,873.56 is: 43,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459.48 : 122,208.66 = 28,873.56 : x
  2. Step 2: Convert to fraction form
    81,459.48/122,208.66 = 28,873.56/x
  3. Step 3: Cross multiply
    81,459.48x = 122,208.66 × 28,873.56
  4. Step 4: Simplify right side
    81,459.48x = 3,528,599,077.03
  5. Step 5: Solve for x
    x = 3,528,599,077.03/81,459.48
  6. Step 6: Final answer
    x = 43,317.23

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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.