Home / 74,734.84-103,135.44-40,743.60

Finding the Fourth Proportional to 74,734.84, 103,135.44 and 40,743.60

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Solution

The fourth proportional to 74,734.84, 103,135.44 and 40,743.60 is: 56,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,734.84 : 103,135.44 = 40,743.60 : x
  2. Step 2: Convert to fraction form
    74,734.84/103,135.44 = 40,743.60/x
  3. Step 3: Cross multiply
    74,734.84x = 103,135.44 × 40,743.60
  4. Step 4: Simplify right side
    74,734.84x = 4,202,109,113.18
  5. Step 5: Solve for x
    x = 4,202,109,113.18/74,734.84
  6. Step 6: Final answer
    x = 56,226.91

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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.