Home / 81,577.48-122,340.32-55,450.12

Finding the Fourth Proportional to 81,577.48, 122,340.32 and 55,450.12

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Solution

The fourth proportional to 81,577.48, 122,340.32 and 55,450.12 is: 83,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,577.48 : 122,340.32 = 55,450.12 : x
  2. Step 2: Convert to fraction form
    81,577.48/122,340.32 = 55,450.12/x
  3. Step 3: Cross multiply
    81,577.48x = 122,340.32 × 55,450.12
  4. Step 4: Simplify right side
    81,577.48x = 6,783,785,424.84
  5. Step 5: Solve for x
    x = 6,783,785,424.84/81,577.48
  6. Step 6: Final answer
    x = 83,157.58

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1.5x scale

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.