Home / 67,273.81-100,787.64-31,764.45

Finding the Fourth Proportional to 67,273.81, 100,787.64 and 31,764.45

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Solution

The fourth proportional to 67,273.81, 100,787.64 and 31,764.45 is: 47,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,273.81 : 100,787.64 = 31,764.45 : x
  2. Step 2: Convert to fraction form
    67,273.81/100,787.64 = 31,764.45/x
  3. Step 3: Cross multiply
    67,273.81x = 100,787.64 × 31,764.45
  4. Step 4: Simplify right side
    67,273.81x = 3,201,464,110.60
  5. Step 5: Solve for x
    x = 3,201,464,110.60/67,273.81
  6. Step 6: Final answer
    x = 47,588.57

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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.