Home / 79,172.43-109,230.82-45,156.34

Finding the Fourth Proportional to 79,172.43, 109,230.82 and 45,156.34

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Solution

The fourth proportional to 79,172.43, 109,230.82 and 45,156.34 is: 62,300.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,172.43 : 109,230.82 = 45,156.34 : x
  2. Step 2: Convert to fraction form
    79,172.43/109,230.82 = 45,156.34/x
  3. Step 3: Cross multiply
    79,172.43x = 109,230.82 × 45,156.34
  4. Step 4: Simplify right side
    79,172.43x = 4,932,464,046.40
  5. Step 5: Solve for x
    x = 4,932,464,046.40/79,172.43
  6. Step 6: Final answer
    x = 62,300.27

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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.