Home / 81,668.35-122,444.61-31,706.34

Finding the Fourth Proportional to 81,668.35, 122,444.61 and 31,706.34

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Solution

The fourth proportional to 81,668.35, 122,444.61 and 31,706.34 is: 47,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668.35 : 122,444.61 = 31,706.34 : x
  2. Step 2: Convert to fraction form
    81,668.35/122,444.61 = 31,706.34/x
  3. Step 3: Cross multiply
    81,668.35x = 122,444.61 × 31,706.34
  4. Step 4: Simplify right side
    81,668.35x = 3,882,270,435.83
  5. Step 5: Solve for x
    x = 3,882,270,435.83/81,668.35
  6. Step 6: Final answer
    x = 47,537.03

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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.