Home / 82,197.12-113,401.68-53,941.20

Finding the Fourth Proportional to 82,197.12, 113,401.68 and 53,941.20

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Solution

The fourth proportional to 82,197.12, 113,401.68 and 53,941.20 is: 74,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,197.12 : 113,401.68 = 53,941.20 : x
  2. Step 2: Convert to fraction form
    82,197.12/113,401.68 = 53,941.20/x
  3. Step 3: Cross multiply
    82,197.12x = 113,401.68 × 53,941.20
  4. Step 4: Simplify right side
    82,197.12x = 6,117,022,701.22
  5. Step 5: Solve for x
    x = 6,117,022,701.22/82,197.12
  6. Step 6: Final answer
    x = 74,418.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.