Home / 84,975.54-127,455.94-39,986.22

Finding the Fourth Proportional to 84,975.54, 127,455.94 and 39,986.22

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Solution

The fourth proportional to 84,975.54, 127,455.94 and 39,986.22 is: 59,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,975.54 : 127,455.94 = 39,986.22 : x
  2. Step 2: Convert to fraction form
    84,975.54/127,455.94 = 39,986.22/x
  3. Step 3: Cross multiply
    84,975.54x = 127,455.94 × 39,986.22
  4. Step 4: Simplify right side
    84,975.54x = 5,096,481,257.15
  5. Step 5: Solve for x
    x = 5,096,481,257.15/84,975.54
  6. Step 6: Final answer
    x = 59,975.86

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1.5x scale

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.