Home / 70,621.46-105,932.19-18,029.06

Finding the Fourth Proportional to 70,621.46, 105,932.19 and 18,029.06

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Solution

The fourth proportional to 70,621.46, 105,932.19 and 18,029.06 is: 27,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,621.46 : 105,932.19 = 18,029.06 : x
  2. Step 2: Convert to fraction form
    70,621.46/105,932.19 = 18,029.06/x
  3. Step 3: Cross multiply
    70,621.46x = 105,932.19 × 18,029.06
  4. Step 4: Simplify right side
    70,621.46x = 1,909,857,809.44
  5. Step 5: Solve for x
    x = 1,909,857,809.44/70,621.46
  6. Step 6: Final answer
    x = 27,043.59

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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.