Home / 81,916.23-122,918.49-34,564.14

Finding the Fourth Proportional to 81,916.23, 122,918.49 and 34,564.14

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Solution

The fourth proportional to 81,916.23, 122,918.49 and 34,564.14 is: 51,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,916.23 : 122,918.49 = 34,564.14 : x
  2. Step 2: Convert to fraction form
    81,916.23/122,918.49 = 34,564.14/x
  3. Step 3: Cross multiply
    81,916.23x = 122,918.49 × 34,564.14
  4. Step 4: Simplify right side
    81,916.23x = 4,248,571,896.95
  5. Step 5: Solve for x
    x = 4,248,571,896.95/81,916.23
  6. Step 6: Final answer
    x = 51,864.84

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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.