Home / 70,911.45-97,857.21-39,080.37

Finding the Fourth Proportional to 70,911.45, 97,857.21 and 39,080.37

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Solution

The fourth proportional to 70,911.45, 97,857.21 and 39,080.37 is: 53,930.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,911.45 : 97,857.21 = 39,080.37 : x
  2. Step 2: Convert to fraction form
    70,911.45/97,857.21 = 39,080.37/x
  3. Step 3: Cross multiply
    70,911.45x = 97,857.21 × 39,080.37
  4. Step 4: Simplify right side
    70,911.45x = 3,824,296,487.48
  5. Step 5: Solve for x
    x = 3,824,296,487.48/70,911.45
  6. Step 6: Final answer
    x = 53,930.59

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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.