Home / 71,266.23-106,902.78-18,675.76

Finding the Fourth Proportional to 71,266.23, 106,902.78 and 18,675.76

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Solution

The fourth proportional to 71,266.23, 106,902.78 and 18,675.76 is: 28,014.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,266.23 : 106,902.78 = 18,675.76 : x
  2. Step 2: Convert to fraction form
    71,266.23/106,902.78 = 18,675.76/x
  3. Step 3: Cross multiply
    71,266.23x = 106,902.78 × 18,675.76
  4. Step 4: Simplify right side
    71,266.23x = 1,996,490,662.61
  5. Step 5: Solve for x
    x = 1,996,490,662.61/71,266.23
  6. Step 6: Final answer
    x = 28,014.54

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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.