Home / 81,629.10-122,446.08-22,465.62

Finding the Fourth Proportional to 81,629.10, 122,446.08 and 22,465.62

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Solution

The fourth proportional to 81,629.10, 122,446.08 and 22,465.62 is: 33,699.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,629.10 : 122,446.08 = 22,465.62 : x
  2. Step 2: Convert to fraction form
    81,629.10/122,446.08 = 22,465.62/x
  3. Step 3: Cross multiply
    81,629.10x = 122,446.08 × 22,465.62
  4. Step 4: Simplify right side
    81,629.10x = 2,750,827,103.77
  5. Step 5: Solve for x
    x = 2,750,827,103.77/81,629.10
  6. Step 6: Final answer
    x = 33,699.10

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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.