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Finding the Fourth Proportional to 78,908, 108,893.03 and 43,098.10

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Solution

The fourth proportional to 78,908, 108,893.03 and 43,098.10 is: 59,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,908 : 108,893.03 = 43,098.10 : x
  2. Step 2: Convert to fraction form
    78,908/108,893.03 = 43,098.10/x
  3. Step 3: Cross multiply
    78,908x = 108,893.03 × 43,098.10
  4. Step 4: Simplify right side
    78,908x = 4,693,082,696.24
  5. Step 5: Solve for x
    x = 4,693,082,696.24/78,908
  6. Step 6: Final answer
    x = 59,475.37

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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.