Home / 85,651.08-118,192.12-49,834.90

Finding the Fourth Proportional to 85,651.08, 118,192.12 and 49,834.90

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Solution

The fourth proportional to 85,651.08, 118,192.12 and 49,834.90 is: 68,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,651.08 : 118,192.12 = 49,834.90 : x
  2. Step 2: Convert to fraction form
    85,651.08/118,192.12 = 49,834.90/x
  3. Step 3: Cross multiply
    85,651.08x = 118,192.12 × 49,834.90
  4. Step 4: Simplify right side
    85,651.08x = 5,890,092,480.99
  5. Step 5: Solve for x
    x = 5,890,092,480.99/85,651.08
  6. Step 6: Final answer
    x = 68,768.46

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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.