Home / 76,528.89-105,609.07-43,818.96

Finding the Fourth Proportional to 76,528.89, 105,609.07 and 43,818.96

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Solution

The fourth proportional to 76,528.89, 105,609.07 and 43,818.96 is: 60,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.89 : 105,609.07 = 43,818.96 : x
  2. Step 2: Convert to fraction form
    76,528.89/105,609.07 = 43,818.96/x
  3. Step 3: Cross multiply
    76,528.89x = 105,609.07 × 43,818.96
  4. Step 4: Simplify right side
    76,528.89x = 4,627,679,613.97
  5. Step 5: Solve for x
    x = 4,627,679,613.97/76,528.89
  6. Step 6: Final answer
    x = 60,469.71

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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.