Home / 84,450.88-116,684.04-66,682.72

Finding the Fourth Proportional to 84,450.88, 116,684.04 and 66,682.72

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Solution

The fourth proportional to 84,450.88, 116,684.04 and 66,682.72 is: 92,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,450.88 : 116,684.04 = 66,682.72 : x
  2. Step 2: Convert to fraction form
    84,450.88/116,684.04 = 66,682.72/x
  3. Step 3: Cross multiply
    84,450.88x = 116,684.04 × 66,682.72
  4. Step 4: Simplify right side
    84,450.88x = 7,780,809,167.79
  5. Step 5: Solve for x
    x = 7,780,809,167.79/84,450.88
  6. Step 6: Final answer
    x = 92,134.14

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1.5x scale

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.