Home / 86,323.25-129,441.51-50,311.31

Finding the Fourth Proportional to 86,323.25, 129,441.51 and 50,311.31

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Solution

The fourth proportional to 86,323.25, 129,441.51 and 50,311.31 is: 75,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,323.25 : 129,441.51 = 50,311.31 : x
  2. Step 2: Convert to fraction form
    86,323.25/129,441.51 = 50,311.31/x
  3. Step 3: Cross multiply
    86,323.25x = 129,441.51 × 50,311.31
  4. Step 4: Simplify right side
    86,323.25x = 6,512,371,289.27
  5. Step 5: Solve for x
    x = 6,512,371,289.27/86,323.25
  6. Step 6: Final answer
    x = 75,441.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.