Home / 81,914.25-122,919.15-34,526.45

Finding the Fourth Proportional to 81,914.25, 122,919.15 and 34,526.45

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Solution

The fourth proportional to 81,914.25, 122,919.15 and 34,526.45 is: 51,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.25 : 122,919.15 = 34,526.45 : x
  2. Step 2: Convert to fraction form
    81,914.25/122,919.15 = 34,526.45/x
  3. Step 3: Cross multiply
    81,914.25x = 122,919.15 × 34,526.45
  4. Step 4: Simplify right side
    81,914.25x = 4,243,961,099.29
  5. Step 5: Solve for x
    x = 4,243,961,099.29/81,914.25
  6. Step 6: Final answer
    x = 51,809.80

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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.