Home / 65,823.89-90,836.55-35,609.09

Finding the Fourth Proportional to 65,823.89, 90,836.55 and 35,609.09

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Solution

The fourth proportional to 65,823.89, 90,836.55 and 35,609.09 is: 49,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,823.89 : 90,836.55 = 35,609.09 : x
  2. Step 2: Convert to fraction form
    65,823.89/90,836.55 = 35,609.09/x
  3. Step 3: Cross multiply
    65,823.89x = 90,836.55 × 35,609.09
  4. Step 4: Simplify right side
    65,823.89x = 3,234,606,430.06
  5. Step 5: Solve for x
    x = 3,234,606,430.06/65,823.89
  6. Step 6: Final answer
    x = 49,140.31

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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.