Home / 68,390.10-94,340.43-40,090.32

Finding the Fourth Proportional to 68,390.10, 94,340.43 and 40,090.32

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Solution

The fourth proportional to 68,390.10, 94,340.43 and 40,090.32 is: 55,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.10 : 94,340.43 = 40,090.32 : x
  2. Step 2: Convert to fraction form
    68,390.10/94,340.43 = 40,090.32/x
  3. Step 3: Cross multiply
    68,390.10x = 94,340.43 × 40,090.32
  4. Step 4: Simplify right side
    68,390.10x = 3,782,138,027.64
  5. Step 5: Solve for x
    x = 3,782,138,027.64/68,390.10
  6. Step 6: Final answer
    x = 55,302.42

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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.