Home / 80,487.62-111,050.40-50,303.60

Finding the Fourth Proportional to 80,487.62, 111,050.40 and 50,303.60

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Solution

The fourth proportional to 80,487.62, 111,050.40 and 50,303.60 is: 69,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.62 : 111,050.40 = 50,303.60 : x
  2. Step 2: Convert to fraction form
    80,487.62/111,050.40 = 50,303.60/x
  3. Step 3: Cross multiply
    80,487.62x = 111,050.40 × 50,303.60
  4. Step 4: Simplify right side
    80,487.62x = 5,586,234,346.19
  5. Step 5: Solve for x
    x = 5,586,234,346.19/80,487.62
  6. Step 6: Final answer
    x = 69,404.89

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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.