Home / 74,932.87-103,406.15-40,940.63

Finding the Fourth Proportional to 74,932.87, 103,406.15 and 40,940.63

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Solution

The fourth proportional to 74,932.87, 103,406.15 and 40,940.63 is: 56,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932.87 : 103,406.15 = 40,940.63 : x
  2. Step 2: Convert to fraction form
    74,932.87/103,406.15 = 40,940.63/x
  3. Step 3: Cross multiply
    74,932.87x = 103,406.15 × 40,940.63
  4. Step 4: Simplify right side
    74,932.87x = 4,233,512,512.20
  5. Step 5: Solve for x
    x = 4,233,512,512.20/74,932.87
  6. Step 6: Final answer
    x = 56,497.40

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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.