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Finding the Fourth Proportional to 81,509.94, 122,265.77 and 22,345.62

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Solution

The fourth proportional to 81,509.94, 122,265.77 and 22,345.62 is: 33,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,509.94 : 122,265.77 = 22,345.62 : x
  2. Step 2: Convert to fraction form
    81,509.94/122,265.77 = 22,345.62/x
  3. Step 3: Cross multiply
    81,509.94x = 122,265.77 × 22,345.62
  4. Step 4: Simplify right side
    81,509.94x = 2,732,104,435.43
  5. Step 5: Solve for x
    x = 2,732,104,435.43/81,509.94
  6. Step 6: Final answer
    x = 33,518.67

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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.