Home / 81,680.67-122,527.98-22,516.38

Finding the Fourth Proportional to 81,680.67, 122,527.98 and 22,516.38

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Solution

The fourth proportional to 81,680.67, 122,527.98 and 22,516.38 is: 33,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,680.67 : 122,527.98 = 22,516.38 : x
  2. Step 2: Convert to fraction form
    81,680.67/122,527.98 = 22,516.38/x
  3. Step 3: Cross multiply
    81,680.67x = 122,527.98 × 22,516.38
  4. Step 4: Simplify right side
    81,680.67x = 2,758,886,558.31
  5. Step 5: Solve for x
    x = 2,758,886,558.31/81,680.67
  6. Step 6: Final answer
    x = 33,776.49

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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.