Home / 69,836.56-104,755.36-19,916.60

Finding the Fourth Proportional to 69,836.56, 104,755.36 and 19,916.60

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Solution

The fourth proportional to 69,836.56, 104,755.36 and 19,916.60 is: 29,875.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,836.56 : 104,755.36 = 19,916.60 : x
  2. Step 2: Convert to fraction form
    69,836.56/104,755.36 = 19,916.60/x
  3. Step 3: Cross multiply
    69,836.56x = 104,755.36 × 19,916.60
  4. Step 4: Simplify right side
    69,836.56x = 2,086,370,602.98
  5. Step 5: Solve for x
    x = 2,086,370,602.98/69,836.56
  6. Step 6: Final answer
    x = 29,875.05

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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.