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Finding the Fourth Proportional to 81,510.97, 122,266.86 and 37,106.67

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Solution

The fourth proportional to 81,510.97, 122,266.86 and 37,106.67 is: 55,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,510.97 : 122,266.86 = 37,106.67 : x
  2. Step 2: Convert to fraction form
    81,510.97/122,266.86 = 37,106.67/x
  3. Step 3: Cross multiply
    81,510.97x = 122,266.86 × 37,106.67
  4. Step 4: Simplify right side
    81,510.97x = 4,536,915,414.62
  5. Step 5: Solve for x
    x = 4,536,915,414.62/81,510.97
  6. Step 6: Final answer
    x = 55,660.18

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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.