Home / 75,388.88-113,052.36-28,007.12

Finding the Fourth Proportional to 75,388.88, 113,052.36 and 28,007.12

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Solution

The fourth proportional to 75,388.88, 113,052.36 and 28,007.12 is: 41,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,388.88 : 113,052.36 = 28,007.12 : x
  2. Step 2: Convert to fraction form
    75,388.88/113,052.36 = 28,007.12/x
  3. Step 3: Cross multiply
    75,388.88x = 113,052.36 × 28,007.12
  4. Step 4: Simplify right side
    75,388.88x = 3,166,271,012.80
  5. Step 5: Solve for x
    x = 3,166,271,012.80/75,388.88
  6. Step 6: Final answer
    x = 41,999.18

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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.