Home / 81,765.09-122,646.42-22,599.45

Finding the Fourth Proportional to 81,765.09, 122,646.42 and 22,599.45

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Solution

The fourth proportional to 81,765.09, 122,646.42 and 22,599.45 is: 33,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,765.09 : 122,646.42 = 22,599.45 : x
  2. Step 2: Convert to fraction form
    81,765.09/122,646.42 = 22,599.45/x
  3. Step 3: Cross multiply
    81,765.09x = 122,646.42 × 22,599.45
  4. Step 4: Simplify right side
    81,765.09x = 2,771,741,636.47
  5. Step 5: Solve for x
    x = 2,771,741,636.47/81,765.09
  6. Step 6: Final answer
    x = 33,898.84

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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.