Home / 71,027.10-106,540.65-39,858.30

Finding the Fourth Proportional to 71,027.10, 106,540.65 and 39,858.30

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Solution

The fourth proportional to 71,027.10, 106,540.65 and 39,858.30 is: 59,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.10 : 106,540.65 = 39,858.30 : x
  2. Step 2: Convert to fraction form
    71,027.10/106,540.65 = 39,858.30/x
  3. Step 3: Cross multiply
    71,027.10x = 106,540.65 × 39,858.30
  4. Step 4: Simplify right side
    71,027.10x = 4,246,529,189.90
  5. Step 5: Solve for x
    x = 4,246,529,189.90/71,027.10
  6. Step 6: Final answer
    x = 59,787.45

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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.