Home / 66,021.36-91,107.84-37,725.22

Finding the Fourth Proportional to 66,021.36, 91,107.84 and 37,725.22

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Solution

The fourth proportional to 66,021.36, 91,107.84 and 37,725.22 is: 52,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.36 : 91,107.84 = 37,725.22 : x
  2. Step 2: Convert to fraction form
    66,021.36/91,107.84 = 37,725.22/x
  3. Step 3: Cross multiply
    66,021.36x = 91,107.84 × 37,725.22
  4. Step 4: Simplify right side
    66,021.36x = 3,437,063,307.72
  5. Step 5: Solve for x
    x = 3,437,063,307.72/66,021.36
  6. Step 6: Final answer
    x = 52,059.87

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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.