Home / 66,911.24-92,311.16-38,611.46

Finding the Fourth Proportional to 66,911.24, 92,311.16 and 38,611.46

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Solution

The fourth proportional to 66,911.24, 92,311.16 and 38,611.46 is: 53,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.24 : 92,311.16 = 38,611.46 : x
  2. Step 2: Convert to fraction form
    66,911.24/92,311.16 = 38,611.46/x
  3. Step 3: Cross multiply
    66,911.24x = 92,311.16 × 38,611.46
  4. Step 4: Simplify right side
    66,911.24x = 3,564,268,661.89
  5. Step 5: Solve for x
    x = 3,564,268,661.89/66,911.24
  6. Step 6: Final answer
    x = 53,268.61

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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.