Home / 81,834.24-112,904.10-66,700.86

Finding the Fourth Proportional to 81,834.24, 112,904.10 and 66,700.86

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Solution

The fourth proportional to 81,834.24, 112,904.10 and 66,700.86 is: 92,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,834.24 : 112,904.10 = 66,700.86 : x
  2. Step 2: Convert to fraction form
    81,834.24/112,904.10 = 66,700.86/x
  3. Step 3: Cross multiply
    81,834.24x = 112,904.10 × 66,700.86
  4. Step 4: Simplify right side
    81,834.24x = 7,530,800,567.53
  5. Step 5: Solve for x
    x = 7,530,800,567.53/81,834.24
  6. Step 6: Final answer
    x = 92,025.06

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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.