Home / 74,441.90-102,730.46-40,450.38

Finding the Fourth Proportional to 74,441.90, 102,730.46 and 40,450.38

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Solution

The fourth proportional to 74,441.90, 102,730.46 and 40,450.38 is: 55,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,441.90 : 102,730.46 = 40,450.38 : x
  2. Step 2: Convert to fraction form
    74,441.90/102,730.46 = 40,450.38/x
  3. Step 3: Cross multiply
    74,441.90x = 102,730.46 × 40,450.38
  4. Step 4: Simplify right side
    74,441.90x = 4,155,486,245.70
  5. Step 5: Solve for x
    x = 4,155,486,245.70/74,441.90
  6. Step 6: Final answer
    x = 55,821.88

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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.