Home / 70,933.20-106,420.62-21,014.60

Finding the Fourth Proportional to 70,933.20, 106,420.62 and 21,014.60

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Solution

The fourth proportional to 70,933.20, 106,420.62 and 21,014.60 is: 31,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,933.20 : 106,420.62 = 21,014.60 : x
  2. Step 2: Convert to fraction form
    70,933.20/106,420.62 = 21,014.60/x
  3. Step 3: Cross multiply
    70,933.20x = 106,420.62 × 21,014.60
  4. Step 4: Simplify right side
    70,933.20x = 2,236,386,761.05
  5. Step 5: Solve for x
    x = 2,236,386,761.05/70,933.20
  6. Step 6: Final answer
    x = 31,528.07

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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.