Home / 76,218.62-114,340.76-28,190.04

Finding the Fourth Proportional to 76,218.62, 114,340.76 and 28,190.04

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Solution

The fourth proportional to 76,218.62, 114,340.76 and 28,190.04 is: 42,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,218.62 : 114,340.76 = 28,190.04 : x
  2. Step 2: Convert to fraction form
    76,218.62/114,340.76 = 28,190.04/x
  3. Step 3: Cross multiply
    76,218.62x = 114,340.76 × 28,190.04
  4. Step 4: Simplify right side
    76,218.62x = 3,223,270,457.08
  5. Step 5: Solve for x
    x = 3,223,270,457.08/76,218.62
  6. Step 6: Final answer
    x = 42,289.81

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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.