Home / 74,179.56-102,367.64-40,188.89

Finding the Fourth Proportional to 74,179.56, 102,367.64 and 40,188.89

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Solution

The fourth proportional to 74,179.56, 102,367.64 and 40,188.89 is: 55,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,179.56 : 102,367.64 = 40,188.89 : x
  2. Step 2: Convert to fraction form
    74,179.56/102,367.64 = 40,188.89/x
  3. Step 3: Cross multiply
    74,179.56x = 102,367.64 × 40,188.89
  4. Step 4: Simplify right side
    74,179.56x = 4,114,041,935.72
  5. Step 5: Solve for x
    x = 4,114,041,935.72/74,179.56
  6. Step 6: Final answer
    x = 55,460.59

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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.