Home / 76,238.88-105,208.20-47,992.56

Finding the Fourth Proportional to 76,238.88, 105,208.20 and 47,992.56

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Solution

The fourth proportional to 76,238.88, 105,208.20 and 47,992.56 is: 66,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,238.88 : 105,208.20 = 47,992.56 : x
  2. Step 2: Convert to fraction form
    76,238.88/105,208.20 = 47,992.56/x
  3. Step 3: Cross multiply
    76,238.88x = 105,208.20 × 47,992.56
  4. Step 4: Simplify right side
    76,238.88x = 5,049,210,850.99
  5. Step 5: Solve for x
    x = 5,049,210,850.99/76,238.88
  6. Step 6: Final answer
    x = 66,228.82

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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.