Home / 81,003.48-111,784.46-45,193.52

Finding the Fourth Proportional to 81,003.48, 111,784.46 and 45,193.52

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Solution

The fourth proportional to 81,003.48, 111,784.46 and 45,193.52 is: 62,366.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,003.48 : 111,784.46 = 45,193.52 : x
  2. Step 2: Convert to fraction form
    81,003.48/111,784.46 = 45,193.52/x
  3. Step 3: Cross multiply
    81,003.48x = 111,784.46 × 45,193.52
  4. Step 4: Simplify right side
    81,003.48x = 5,051,933,228.70
  5. Step 5: Solve for x
    x = 5,051,933,228.70/81,003.48
  6. Step 6: Final answer
    x = 62,366.87

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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.