Home / 54,431.28-81,662.04-31,074.12

Finding the Fourth Proportional to 54,431.28, 81,662.04 and 31,074.12

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Solution

The fourth proportional to 54,431.28, 81,662.04 and 31,074.12 is: 46,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.28 : 81,662.04 = 31,074.12 : x
  2. Step 2: Convert to fraction form
    54,431.28/81,662.04 = 31,074.12/x
  3. Step 3: Cross multiply
    54,431.28x = 81,662.04 × 31,074.12
  4. Step 4: Simplify right side
    54,431.28x = 2,537,576,030.40
  5. Step 5: Solve for x
    x = 2,537,576,030.40/54,431.28
  6. Step 6: Final answer
    x = 46,619.81

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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.