Home / 75,739.37-113,609.05-20,335.37

Finding the Fourth Proportional to 75,739.37, 113,609.05 and 20,335.37

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Solution

The fourth proportional to 75,739.37, 113,609.05 and 20,335.37 is: 30,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,739.37 : 113,609.05 = 20,335.37 : x
  2. Step 2: Convert to fraction form
    75,739.37/113,609.05 = 20,335.37/x
  3. Step 3: Cross multiply
    75,739.37x = 113,609.05 × 20,335.37
  4. Step 4: Simplify right side
    75,739.37x = 2,310,281,499.05
  5. Step 5: Solve for x
    x = 2,310,281,499.05/75,739.37
  6. Step 6: Final answer
    x = 30,503.05

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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.