Home / 45,090.80-62,159.36-31,621.44

Finding the Fourth Proportional to 45,090.80, 62,159.36 and 31,621.44

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Solution

The fourth proportional to 45,090.80, 62,159.36 and 31,621.44 is: 43,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,090.80 : 62,159.36 = 31,621.44 : x
  2. Step 2: Convert to fraction form
    45,090.80/62,159.36 = 31,621.44/x
  3. Step 3: Cross multiply
    45,090.80x = 62,159.36 × 31,621.44
  4. Step 4: Simplify right side
    45,090.80x = 1,965,568,472.68
  5. Step 5: Solve for x
    x = 1,965,568,472.68/45,090.80
  6. Step 6: Final answer
    x = 43,591.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.