Home / 81,815.63-122,723.60-22,651.47

Finding the Fourth Proportional to 81,815.63, 122,723.60 and 22,651.47

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Solution

The fourth proportional to 81,815.63, 122,723.60 and 22,651.47 is: 33,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,815.63 : 122,723.60 = 22,651.47 : x
  2. Step 2: Convert to fraction form
    81,815.63/122,723.60 = 22,651.47/x
  3. Step 3: Cross multiply
    81,815.63x = 122,723.60 × 22,651.47
  4. Step 4: Simplify right side
    81,815.63x = 2,779,869,830.43
  5. Step 5: Solve for x
    x = 2,779,869,830.43/81,815.63
  6. Step 6: Final answer
    x = 33,977.25

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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.