Home / 74,179.64-102,367.93-40,188.36

Finding the Fourth Proportional to 74,179.64, 102,367.93 and 40,188.36

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Solution

The fourth proportional to 74,179.64, 102,367.93 and 40,188.36 is: 55,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.64 : 102,367.93 = 40,188.36 : x
  2. Step 2: Convert to fraction form
    74,179.64/102,367.93 = 40,188.36/x
  3. Step 3: Cross multiply
    74,179.64x = 102,367.93 × 40,188.36
  4. Step 4: Simplify right side
    74,179.64x = 4,113,999,181.12
  5. Step 5: Solve for x
    x = 4,113,999,181.12/74,179.64
  6. Step 6: Final answer
    x = 55,459.95

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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.