Home / 76,176.26-105,122.61-43,899.10

Finding the Fourth Proportional to 76,176.26, 105,122.61 and 43,899.10

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Solution

The fourth proportional to 76,176.26, 105,122.61 and 43,899.10 is: 60,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,176.26 : 105,122.61 = 43,899.10 : x
  2. Step 2: Convert to fraction form
    76,176.26/105,122.61 = 43,899.10/x
  3. Step 3: Cross multiply
    76,176.26x = 105,122.61 × 43,899.10
  4. Step 4: Simplify right side
    76,176.26x = 4,614,787,968.65
  5. Step 5: Solve for x
    x = 4,614,787,968.65/76,176.26
  6. Step 6: Final answer
    x = 60,580.40

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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.