Home / 76,261.86-105,205.77-47,983.14

Finding the Fourth Proportional to 76,261.86, 105,205.77 and 47,983.14

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Solution

The fourth proportional to 76,261.86, 105,205.77 and 47,983.14 is: 66,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,261.86 : 105,205.77 = 47,983.14 : x
  2. Step 2: Convert to fraction form
    76,261.86/105,205.77 = 47,983.14/x
  3. Step 3: Cross multiply
    76,261.86x = 105,205.77 × 47,983.14
  4. Step 4: Simplify right side
    76,261.86x = 5,048,103,190.72
  5. Step 5: Solve for x
    x = 5,048,103,190.72/76,261.86
  6. Step 6: Final answer
    x = 66,194.34

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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.