Home / 74,550.30-102,880.23-40,558.98

Finding the Fourth Proportional to 74,550.30, 102,880.23 and 40,558.98

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Solution

The fourth proportional to 74,550.30, 102,880.23 and 40,558.98 is: 55,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,550.30 : 102,880.23 = 40,558.98 : x
  2. Step 2: Convert to fraction form
    74,550.30/102,880.23 = 40,558.98/x
  3. Step 3: Cross multiply
    74,550.30x = 102,880.23 × 40,558.98
  4. Step 4: Simplify right side
    74,550.30x = 4,172,717,190.97
  5. Step 5: Solve for x
    x = 4,172,717,190.97/74,550.30
  6. Step 6: Final answer
    x = 55,971.84

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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.