Home / 76,329.85-105,371.36-50,878.63

Finding the Fourth Proportional to 76,329.85, 105,371.36 and 50,878.63

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Solution

The fourth proportional to 76,329.85, 105,371.36 and 50,878.63 is: 70,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,329.85 : 105,371.36 = 50,878.63 : x
  2. Step 2: Convert to fraction form
    76,329.85/105,371.36 = 50,878.63/x
  3. Step 3: Cross multiply
    76,329.85x = 105,371.36 × 50,878.63
  4. Step 4: Simplify right side
    76,329.85x = 5,361,150,438.04
  5. Step 5: Solve for x
    x = 5,361,150,438.04/76,329.85
  6. Step 6: Final answer
    x = 70,236.62

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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.