Home / 81,917.12-122,923.47-34,529.32

Finding the Fourth Proportional to 81,917.12, 122,923.47 and 34,529.32

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Solution

The fourth proportional to 81,917.12, 122,923.47 and 34,529.32 is: 51,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,917.12 : 122,923.47 = 34,529.32 : x
  2. Step 2: Convert to fraction form
    81,917.12/122,923.47 = 34,529.32/x
  3. Step 3: Cross multiply
    81,917.12x = 122,923.47 × 34,529.32
  4. Step 4: Simplify right side
    81,917.12x = 4,244,464,114.28
  5. Step 5: Solve for x
    x = 4,244,464,114.28/81,917.12
  6. Step 6: Final answer
    x = 51,814.13

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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.