Home / 74,622.51-102,942.36-55,441.17

Finding the Fourth Proportional to 74,622.51, 102,942.36 and 55,441.17

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Solution

The fourth proportional to 74,622.51, 102,942.36 and 55,441.17 is: 76,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.51 : 102,942.36 = 55,441.17 : x
  2. Step 2: Convert to fraction form
    74,622.51/102,942.36 = 55,441.17/x
  3. Step 3: Cross multiply
    74,622.51x = 102,942.36 × 55,441.17
  4. Step 4: Simplify right side
    74,622.51x = 5,707,244,880.96
  5. Step 5: Solve for x
    x = 5,707,244,880.96/74,622.51
  6. Step 6: Final answer
    x = 76,481.55

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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.