Home / 74,762.49-103,169.79-40,770.03

Finding the Fourth Proportional to 74,762.49, 103,169.79 and 40,770.03

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Solution

The fourth proportional to 74,762.49, 103,169.79 and 40,770.03 is: 56,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,762.49 : 103,169.79 = 40,770.03 : x
  2. Step 2: Convert to fraction form
    74,762.49/103,169.79 = 40,770.03/x
  3. Step 3: Cross multiply
    74,762.49x = 103,169.79 × 40,770.03
  4. Step 4: Simplify right side
    74,762.49x = 4,206,235,433.39
  5. Step 5: Solve for x
    x = 4,206,235,433.39/74,762.49
  6. Step 6: Final answer
    x = 56,261.31

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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.