Home / 81,817.48-122,881.82-50,869

Finding the Fourth Proportional to 81,817.48, 122,881.82 and 50,869

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Solution

The fourth proportional to 81,817.48, 122,881.82 and 50,869 is: 76,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,817.48 : 122,881.82 = 50,869 : x
  2. Step 2: Convert to fraction form
    81,817.48/122,881.82 = 50,869/x
  3. Step 3: Cross multiply
    81,817.48x = 122,881.82 × 50,869
  4. Step 4: Simplify right side
    81,817.48x = 6,250,875,301.58
  5. Step 5: Solve for x
    x = 6,250,875,301.58/81,817.48
  6. Step 6: Final answer
    x = 76,400.24

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1.5x scale

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.