Home / 78,558.12-108,424.26-50,262.84

Finding the Fourth Proportional to 78,558.12, 108,424.26 and 50,262.84

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Solution

The fourth proportional to 78,558.12, 108,424.26 and 50,262.84 is: 69,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558.12 : 108,424.26 = 50,262.84 : x
  2. Step 2: Convert to fraction form
    78,558.12/108,424.26 = 50,262.84/x
  3. Step 3: Cross multiply
    78,558.12x = 108,424.26 × 50,262.84
  4. Step 4: Simplify right side
    78,558.12x = 5,449,711,232.50
  5. Step 5: Solve for x
    x = 5,449,711,232.50/78,558.12
  6. Step 6: Final answer
    x = 69,371.71

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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.