Home / 74,418.64-102,698.55-40,884.64

Finding the Fourth Proportional to 74,418.64, 102,698.55 and 40,884.64

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Solution

The fourth proportional to 74,418.64, 102,698.55 and 40,884.64 is: 56,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.64 : 102,698.55 = 40,884.64 : x
  2. Step 2: Convert to fraction form
    74,418.64/102,698.55 = 40,884.64/x
  3. Step 3: Cross multiply
    74,418.64x = 102,698.55 × 40,884.64
  4. Step 4: Simplify right side
    74,418.64x = 4,198,793,245.27
  5. Step 5: Solve for x
    x = 4,198,793,245.27/74,418.64
  6. Step 6: Final answer
    x = 56,421.26

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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.