Home / 81,289.53-121,845.09-41,848.74

Finding the Fourth Proportional to 81,289.53, 121,845.09 and 41,848.74

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Solution

The fourth proportional to 81,289.53, 121,845.09 and 41,848.74 is: 62,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.53 : 121,845.09 = 41,848.74 : x
  2. Step 2: Convert to fraction form
    81,289.53/121,845.09 = 41,848.74/x
  3. Step 3: Cross multiply
    81,289.53x = 121,845.09 × 41,848.74
  4. Step 4: Simplify right side
    81,289.53x = 5,099,063,491.69
  5. Step 5: Solve for x
    x = 5,099,063,491.69/81,289.53
  6. Step 6: Final answer
    x = 62,727.19

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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.