Home / 69,305.72-103,942.90-31,829.77

Finding the Fourth Proportional to 69,305.72, 103,942.90 and 31,829.77

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Solution

The fourth proportional to 69,305.72, 103,942.90 and 31,829.77 is: 47,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.72 : 103,942.90 = 31,829.77 : x
  2. Step 2: Convert to fraction form
    69,305.72/103,942.90 = 31,829.77/x
  3. Step 3: Cross multiply
    69,305.72x = 103,942.90 × 31,829.77
  4. Step 4: Simplify right side
    69,305.72x = 3,308,478,260.70
  5. Step 5: Solve for x
    x = 3,308,478,260.70/69,305.72
  6. Step 6: Final answer
    x = 47,737.45

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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.