Home / 69,669.65-96,144.30-40,990.39

Finding the Fourth Proportional to 69,669.65, 96,144.30 and 40,990.39

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Solution

The fourth proportional to 69,669.65, 96,144.30 and 40,990.39 is: 56,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,669.65 : 96,144.30 = 40,990.39 : x
  2. Step 2: Convert to fraction form
    69,669.65/96,144.30 = 40,990.39/x
  3. Step 3: Cross multiply
    69,669.65x = 96,144.30 × 40,990.39
  4. Step 4: Simplify right side
    69,669.65x = 3,940,992,627.17
  5. Step 5: Solve for x
    x = 3,940,992,627.17/69,669.65
  6. Step 6: Final answer
    x = 56,566.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.