Home / 74,872.35-103,323.06-40,880.73

Finding the Fourth Proportional to 74,872.35, 103,323.06 and 40,880.73

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Solution

The fourth proportional to 74,872.35, 103,323.06 and 40,880.73 is: 56,414.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,872.35 : 103,323.06 = 40,880.73 : x
  2. Step 2: Convert to fraction form
    74,872.35/103,323.06 = 40,880.73/x
  3. Step 3: Cross multiply
    74,872.35x = 103,323.06 × 40,880.73
  4. Step 4: Simplify right side
    74,872.35x = 4,223,922,118.63
  5. Step 5: Solve for x
    x = 4,223,922,118.63/74,872.35
  6. Step 6: Final answer
    x = 56,414.98

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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.