Home / 76,629.16-105,723.60-46,404.80

Finding the Fourth Proportional to 76,629.16, 105,723.60 and 46,404.80

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Solution

The fourth proportional to 76,629.16, 105,723.60 and 46,404.80 is: 64,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629.16 : 105,723.60 = 46,404.80 : x
  2. Step 2: Convert to fraction form
    76,629.16/105,723.60 = 46,404.80/x
  3. Step 3: Cross multiply
    76,629.16x = 105,723.60 × 46,404.80
  4. Step 4: Simplify right side
    76,629.16x = 4,906,082,513.28
  5. Step 5: Solve for x
    x = 4,906,082,513.28/76,629.16
  6. Step 6: Final answer
    x = 64,023.70

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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.