Home / 47,172.78-70,747.83-13,883.81

Finding the Fourth Proportional to 47,172.78, 70,747.83 and 13,883.81

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Solution

The fourth proportional to 47,172.78, 70,747.83 and 13,883.81 is: 20,822.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,172.78 : 70,747.83 = 13,883.81 : x
  2. Step 2: Convert to fraction form
    47,172.78/70,747.83 = 13,883.81/x
  3. Step 3: Cross multiply
    47,172.78x = 70,747.83 × 13,883.81
  4. Step 4: Simplify right side
    47,172.78x = 982,249,075.89
  5. Step 5: Solve for x
    x = 982,249,075.89/47,172.78
  6. Step 6: Final answer
    x = 20,822.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.