Home / 69,439.23-104,080.08-31,921.78

Finding the Fourth Proportional to 69,439.23, 104,080.08 and 31,921.78

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Solution

The fourth proportional to 69,439.23, 104,080.08 and 31,921.78 is: 47,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,439.23 : 104,080.08 = 31,921.78 : x
  2. Step 2: Convert to fraction form
    69,439.23/104,080.08 = 31,921.78/x
  3. Step 3: Cross multiply
    69,439.23x = 104,080.08 × 31,921.78
  4. Step 4: Simplify right side
    69,439.23x = 3,322,421,416.14
  5. Step 5: Solve for x
    x = 3,322,421,416.14/69,439.23
  6. Step 6: Final answer
    x = 47,846.46

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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.