Home / 75,431.21-113,171.40-35,983.19

Finding the Fourth Proportional to 75,431.21, 113,171.40 and 35,983.19

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Solution

The fourth proportional to 75,431.21, 113,171.40 and 35,983.19 is: 53,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.21 : 113,171.40 = 35,983.19 : x
  2. Step 2: Convert to fraction form
    75,431.21/113,171.40 = 35,983.19/x
  3. Step 3: Cross multiply
    75,431.21x = 113,171.40 × 35,983.19
  4. Step 4: Simplify right side
    75,431.21x = 4,072,268,271.69
  5. Step 5: Solve for x
    x = 4,072,268,271.69/75,431.21
  6. Step 6: Final answer
    x = 53,986.52

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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.