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Finding the Fourth Proportional to 81,693.32, 122,452.86 and 46,557.32

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Solution

The fourth proportional to 81,693.32, 122,452.86 and 46,557.32 is: 69,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,693.32 : 122,452.86 = 46,557.32 : x
  2. Step 2: Convert to fraction form
    81,693.32/122,452.86 = 46,557.32/x
  3. Step 3: Cross multiply
    81,693.32x = 122,452.86 × 46,557.32
  4. Step 4: Simplify right side
    81,693.32x = 5,701,076,987.94
  5. Step 5: Solve for x
    x = 5,701,076,987.94/81,693.32
  6. Step 6: Final answer
    x = 69,786.33

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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.