Home / 66,834.55-92,260.57-39,971.86

Finding the Fourth Proportional to 66,834.55, 92,260.57 and 39,971.86

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Solution

The fourth proportional to 66,834.55, 92,260.57 and 39,971.86 is: 55,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,834.55 : 92,260.57 = 39,971.86 : x
  2. Step 2: Convert to fraction form
    66,834.55/92,260.57 = 39,971.86/x
  3. Step 3: Cross multiply
    66,834.55x = 92,260.57 × 39,971.86
  4. Step 4: Simplify right side
    66,834.55x = 3,687,826,850.89
  5. Step 5: Solve for x
    x = 3,687,826,850.89/66,834.55
  6. Step 6: Final answer
    x = 55,178.45

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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.