Home / 54,090.94-74,640.46-31,429.69

Finding the Fourth Proportional to 54,090.94, 74,640.46 and 31,429.69

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Solution

The fourth proportional to 54,090.94, 74,640.46 and 31,429.69 is: 43,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,090.94 : 74,640.46 = 31,429.69 : x
  2. Step 2: Convert to fraction form
    54,090.94/74,640.46 = 31,429.69/x
  3. Step 3: Cross multiply
    54,090.94x = 74,640.46 × 31,429.69
  4. Step 4: Simplify right side
    54,090.94x = 2,345,926,519.26
  5. Step 5: Solve for x
    x = 2,345,926,519.26/54,090.94
  6. Step 6: Final answer
    x = 43,370.05

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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.