Home / 74,939.91-103,418.45-40,949.83

Finding the Fourth Proportional to 74,939.91, 103,418.45 and 40,949.83

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Solution

The fourth proportional to 74,939.91, 103,418.45 and 40,949.83 is: 56,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.91 : 103,418.45 = 40,949.83 : x
  2. Step 2: Convert to fraction form
    74,939.91/103,418.45 = 40,949.83/x
  3. Step 3: Cross multiply
    74,939.91x = 103,418.45 × 40,949.83
  4. Step 4: Simplify right side
    74,939.91x = 4,234,967,618.41
  5. Step 5: Solve for x
    x = 4,234,967,618.41/74,939.91
  6. Step 6: Final answer
    x = 56,511.51

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1.5x scale

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.