Home / 71,113.24-106,669.82-18,522.60

Finding the Fourth Proportional to 71,113.24, 106,669.82 and 18,522.60

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Solution

The fourth proportional to 71,113.24, 106,669.82 and 18,522.60 is: 27,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,113.24 : 106,669.82 = 18,522.60 : x
  2. Step 2: Convert to fraction form
    71,113.24/106,669.82 = 18,522.60/x
  3. Step 3: Cross multiply
    71,113.24x = 106,669.82 × 18,522.60
  4. Step 4: Simplify right side
    71,113.24x = 1,975,802,407.93
  5. Step 5: Solve for x
    x = 1,975,802,407.93/71,113.24
  6. Step 6: Final answer
    x = 27,783.89

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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.