Home / 74,919.04-103,383.70-40,920.64

Finding the Fourth Proportional to 74,919.04, 103,383.70 and 40,920.64

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Solution

The fourth proportional to 74,919.04, 103,383.70 and 40,920.64 is: 56,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.04 : 103,383.70 = 40,920.64 : x
  2. Step 2: Convert to fraction form
    74,919.04/103,383.70 = 40,920.64/x
  3. Step 3: Cross multiply
    74,919.04x = 103,383.70 × 40,920.64
  4. Step 4: Simplify right side
    74,919.04x = 4,230,527,169.57
  5. Step 5: Solve for x
    x = 4,230,527,169.57/74,919.04
  6. Step 6: Final answer
    x = 56,467.98

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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.