Home / 82,048.14-123,072.18-19,718.64

Finding the Fourth Proportional to 82,048.14, 123,072.18 and 19,718.64

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Solution

The fourth proportional to 82,048.14, 123,072.18 and 19,718.64 is: 29,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,048.14 : 123,072.18 = 19,718.64 : x
  2. Step 2: Convert to fraction form
    82,048.14/123,072.18 = 19,718.64/x
  3. Step 3: Cross multiply
    82,048.14x = 123,072.18 × 19,718.64
  4. Step 4: Simplify right side
    82,048.14x = 2,426,816,011.44
  5. Step 5: Solve for x
    x = 2,426,816,011.44/82,048.14
  6. Step 6: Final answer
    x = 29,577.95

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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.