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Finding the Fourth Proportional to 57,821.63, 79,807.19 and 37,643.38

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Solution

The fourth proportional to 57,821.63, 79,807.19 and 37,643.38 is: 51,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,821.63 : 79,807.19 = 37,643.38 : x
  2. Step 2: Convert to fraction form
    57,821.63/79,807.19 = 37,643.38/x
  3. Step 3: Cross multiply
    57,821.63x = 79,807.19 × 37,643.38
  4. Step 4: Simplify right side
    57,821.63x = 3,004,212,379.90
  5. Step 5: Solve for x
    x = 3,004,212,379.90/57,821.63
  6. Step 6: Final answer
    x = 51,956.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.