Home / 75,975.75-113,965.10-23,385.20

Finding the Fourth Proportional to 75,975.75, 113,965.10 and 23,385.20

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Solution

The fourth proportional to 75,975.75, 113,965.10 and 23,385.20 is: 35,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,975.75 : 113,965.10 = 23,385.20 : x
  2. Step 2: Convert to fraction form
    75,975.75/113,965.10 = 23,385.20/x
  3. Step 3: Cross multiply
    75,975.75x = 113,965.10 × 23,385.20
  4. Step 4: Simplify right side
    75,975.75x = 2,665,095,969.77
  5. Step 5: Solve for x
    x = 2,665,095,969.77/75,975.75
  6. Step 6: Final answer
    x = 35,078.24

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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.