Home / 75,431.12-113,144.26-19,271.04

Finding the Fourth Proportional to 75,431.12, 113,144.26 and 19,271.04

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Solution

The fourth proportional to 75,431.12, 113,144.26 and 19,271.04 is: 28,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.12 : 113,144.26 = 19,271.04 : x
  2. Step 2: Convert to fraction form
    75,431.12/113,144.26 = 19,271.04/x
  3. Step 3: Cross multiply
    75,431.12x = 113,144.26 × 19,271.04
  4. Step 4: Simplify right side
    75,431.12x = 2,180,407,560.23
  5. Step 5: Solve for x
    x = 2,180,407,560.23/75,431.12
  6. Step 6: Final answer
    x = 28,905.94

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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.