Home / 82,007.04-122,932.80-40,405.44

Finding the Fourth Proportional to 82,007.04, 122,932.80 and 40,405.44

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Solution

The fourth proportional to 82,007.04, 122,932.80 and 40,405.44 is: 60,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,007.04 : 122,932.80 = 40,405.44 : x
  2. Step 2: Convert to fraction form
    82,007.04/122,932.80 = 40,405.44/x
  3. Step 3: Cross multiply
    82,007.04x = 122,932.80 × 40,405.44
  4. Step 4: Simplify right side
    82,007.04x = 4,967,153,874.43
  5. Step 5: Solve for x
    x = 4,967,153,874.43/82,007.04
  6. Step 6: Final answer
    x = 60,569.85

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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.