Home / 82,421.50-113,658.24-67,265.32

Finding the Fourth Proportional to 82,421.50, 113,658.24 and 67,265.32

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Solution

The fourth proportional to 82,421.50, 113,658.24 and 67,265.32 is: 92,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,421.50 : 113,658.24 = 67,265.32 : x
  2. Step 2: Convert to fraction form
    82,421.50/113,658.24 = 67,265.32/x
  3. Step 3: Cross multiply
    82,421.50x = 113,658.24 × 67,265.32
  4. Step 4: Simplify right side
    82,421.50x = 7,645,257,884.24
  5. Step 5: Solve for x
    x = 7,645,257,884.24/82,421.50
  6. Step 6: Final answer
    x = 92,758.05

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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.