Home / 76,349.27-105,292.94-47,671.56

Finding the Fourth Proportional to 76,349.27, 105,292.94 and 47,671.56

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Solution

The fourth proportional to 76,349.27, 105,292.94 and 47,671.56 is: 65,743.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,349.27 : 105,292.94 = 47,671.56 : x
  2. Step 2: Convert to fraction form
    76,349.27/105,292.94 = 47,671.56/x
  3. Step 3: Cross multiply
    76,349.27x = 105,292.94 × 47,671.56
  4. Step 4: Simplify right side
    76,349.27x = 5,019,478,468.43
  5. Step 5: Solve for x
    x = 5,019,478,468.43/76,349.27
  6. Step 6: Final answer
    x = 65,743.63

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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.