Home / 81,729.32-122,506.80-46,593.32

Finding the Fourth Proportional to 81,729.32, 122,506.80 and 46,593.32

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Solution

The fourth proportional to 81,729.32, 122,506.80 and 46,593.32 is: 69,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,729.32 : 122,506.80 = 46,593.32 : x
  2. Step 2: Convert to fraction form
    81,729.32/122,506.80 = 46,593.32/x
  3. Step 3: Cross multiply
    81,729.32x = 122,506.80 × 46,593.32
  4. Step 4: Simplify right side
    81,729.32x = 5,707,998,534.58
  5. Step 5: Solve for x
    x = 5,707,998,534.58/81,729.32
  6. Step 6: Final answer
    x = 69,840.28

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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.