Home / 81,811.44-122,783-46,294.48

Finding the Fourth Proportional to 81,811.44, 122,783 and 46,294.48

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Solution

The fourth proportional to 81,811.44, 122,783 and 46,294.48 is: 69,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811.44 : 122,783 = 46,294.48 : x
  2. Step 2: Convert to fraction form
    81,811.44/122,783 = 46,294.48/x
  3. Step 3: Cross multiply
    81,811.44x = 122,783 × 46,294.48
  4. Step 4: Simplify right side
    81,811.44x = 5,684,175,137.84
  5. Step 5: Solve for x
    x = 5,684,175,137.84/81,811.44
  6. Step 6: Final answer
    x = 69,478.98

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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.