Home / 81,132.24-111,892.68-52,827.60

Finding the Fourth Proportional to 81,132.24, 111,892.68 and 52,827.60

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Solution

The fourth proportional to 81,132.24, 111,892.68 and 52,827.60 is: 72,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,132.24 : 111,892.68 = 52,827.60 : x
  2. Step 2: Convert to fraction form
    81,132.24/111,892.68 = 52,827.60/x
  3. Step 3: Cross multiply
    81,132.24x = 111,892.68 × 52,827.60
  4. Step 4: Simplify right side
    81,132.24x = 5,911,021,741.97
  5. Step 5: Solve for x
    x = 5,911,021,741.97/81,132.24
  6. Step 6: Final answer
    x = 72,856.63

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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.