Home / 66,512.27-91,787.76-39,670.08

Finding the Fourth Proportional to 66,512.27, 91,787.76 and 39,670.08

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Solution

The fourth proportional to 66,512.27, 91,787.76 and 39,670.08 is: 54,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.27 : 91,787.76 = 39,670.08 : x
  2. Step 2: Convert to fraction form
    66,512.27/91,787.76 = 39,670.08/x
  3. Step 3: Cross multiply
    66,512.27x = 91,787.76 × 39,670.08
  4. Step 4: Simplify right side
    66,512.27x = 3,641,227,782.22
  5. Step 5: Solve for x
    x = 3,641,227,782.22/66,512.27
  6. Step 6: Final answer
    x = 54,745.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.