Home / 74,111.60-102,273.88-40,119.92

Finding the Fourth Proportional to 74,111.60, 102,273.88 and 40,119.92

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Solution

The fourth proportional to 74,111.60, 102,273.88 and 40,119.92 is: 55,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.60 : 102,273.88 = 40,119.92 : x
  2. Step 2: Convert to fraction form
    74,111.60/102,273.88 = 40,119.92/x
  3. Step 3: Cross multiply
    74,111.60x = 102,273.88 × 40,119.92
  4. Step 4: Simplify right side
    74,111.60x = 4,103,219,883.69
  5. Step 5: Solve for x
    x = 4,103,219,883.69/74,111.60
  6. Step 6: Final answer
    x = 55,365.42

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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.