Home / 69,845.10-104,795.70-31,912.35

Finding the Fourth Proportional to 69,845.10, 104,795.70 and 31,912.35

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Solution

The fourth proportional to 69,845.10, 104,795.70 and 31,912.35 is: 47,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,845.10 : 104,795.70 = 31,912.35 : x
  2. Step 2: Convert to fraction form
    69,845.10/104,795.70 = 31,912.35/x
  3. Step 3: Cross multiply
    69,845.10x = 104,795.70 × 31,912.35
  4. Step 4: Simplify right side
    69,845.10x = 3,344,277,056.90
  5. Step 5: Solve for x
    x = 3,344,277,056.90/69,845.10
  6. Step 6: Final answer
    x = 47,881.34

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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.