Home / 70,912.56-106,387.20-31,460.16

Finding the Fourth Proportional to 70,912.56, 106,387.20 and 31,460.16

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Solution

The fourth proportional to 70,912.56, 106,387.20 and 31,460.16 is: 47,198.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912.56 : 106,387.20 = 31,460.16 : x
  2. Step 2: Convert to fraction form
    70,912.56/106,387.20 = 31,460.16/x
  3. Step 3: Cross multiply
    70,912.56x = 106,387.20 × 31,460.16
  4. Step 4: Simplify right side
    70,912.56x = 3,346,958,333.95
  5. Step 5: Solve for x
    x = 3,346,958,333.95/70,912.56
  6. Step 6: Final answer
    x = 47,198.39

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1.5x scale

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.