Home / 74,622.85-102,982.05-40,632.65

Finding the Fourth Proportional to 74,622.85, 102,982.05 and 40,632.65

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Solution

The fourth proportional to 74,622.85, 102,982.05 and 40,632.65 is: 56,074.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.85 : 102,982.05 = 40,632.65 : x
  2. Step 2: Convert to fraction form
    74,622.85/102,982.05 = 40,632.65/x
  3. Step 3: Cross multiply
    74,622.85x = 102,982.05 × 40,632.65
  4. Step 4: Simplify right side
    74,622.85x = 4,184,433,593.93
  5. Step 5: Solve for x
    x = 4,184,433,593.93/74,622.85
  6. Step 6: Final answer
    x = 56,074.43

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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.