Home / 69,400.49-104,143.77-31,965.87

Finding the Fourth Proportional to 69,400.49, 104,143.77 and 31,965.87

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Solution

The fourth proportional to 69,400.49, 104,143.77 and 31,965.87 is: 47,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,400.49 : 104,143.77 = 31,965.87 : x
  2. Step 2: Convert to fraction form
    69,400.49/104,143.77 = 31,965.87/x
  3. Step 3: Cross multiply
    69,400.49x = 104,143.77 × 31,965.87
  4. Step 4: Simplify right side
    69,400.49x = 3,329,046,213.13
  5. Step 5: Solve for x
    x = 3,329,046,213.13/69,400.49
  6. Step 6: Final answer
    x = 47,968.63

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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.