Home / 82,425.13-123,636.78-20,095.63

Finding the Fourth Proportional to 82,425.13, 123,636.78 and 20,095.63

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Solution

The fourth proportional to 82,425.13, 123,636.78 and 20,095.63 is: 30,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,425.13 : 123,636.78 = 20,095.63 : x
  2. Step 2: Convert to fraction form
    82,425.13/123,636.78 = 20,095.63/x
  3. Step 3: Cross multiply
    82,425.13x = 123,636.78 × 20,095.63
  4. Step 4: Simplify right side
    82,425.13x = 2,484,558,676.18
  5. Step 5: Solve for x
    x = 2,484,558,676.18/82,425.13
  6. Step 6: Final answer
    x = 30,143.22

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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.