Home / 81,913.54-122,914.46-34,561.45

Finding the Fourth Proportional to 81,913.54, 122,914.46 and 34,561.45

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Solution

The fourth proportional to 81,913.54, 122,914.46 and 34,561.45 is: 51,860.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.54 : 122,914.46 = 34,561.45 : x
  2. Step 2: Convert to fraction form
    81,913.54/122,914.46 = 34,561.45/x
  3. Step 3: Cross multiply
    81,913.54x = 122,914.46 × 34,561.45
  4. Step 4: Simplify right side
    81,913.54x = 4,248,102,353.53
  5. Step 5: Solve for x
    x = 4,248,102,353.53/81,913.54
  6. Step 6: Final answer
    x = 51,860.81

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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.