Home / 75,435.60-113,218.20-33,380.40

Finding the Fourth Proportional to 75,435.60, 113,218.20 and 33,380.40

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Solution

The fourth proportional to 75,435.60, 113,218.20 and 33,380.40 is: 50,099.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.60 : 113,218.20 = 33,380.40 : x
  2. Step 2: Convert to fraction form
    75,435.60/113,218.20 = 33,380.40/x
  3. Step 3: Cross multiply
    75,435.60x = 113,218.20 × 33,380.40
  4. Step 4: Simplify right side
    75,435.60x = 3,779,268,803.28
  5. Step 5: Solve for x
    x = 3,779,268,803.28/75,435.60
  6. Step 6: Final answer
    x = 50,099.27

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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.