Home / 74,212.50-102,343.78-47,372.34

Finding the Fourth Proportional to 74,212.50, 102,343.78 and 47,372.34

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Solution

The fourth proportional to 74,212.50, 102,343.78 and 47,372.34 is: 65,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,212.50 : 102,343.78 = 47,372.34 : x
  2. Step 2: Convert to fraction form
    74,212.50/102,343.78 = 47,372.34/x
  3. Step 3: Cross multiply
    74,212.50x = 102,343.78 × 47,372.34
  4. Step 4: Simplify right side
    74,212.50x = 4,848,263,712.90
  5. Step 5: Solve for x
    x = 4,848,263,712.90/74,212.50
  6. Step 6: Final answer
    x = 65,329.48

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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.