Home / 80,439.60-111,022.80-46,453.62

Finding the Fourth Proportional to 80,439.60, 111,022.80 and 46,453.62

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Solution

The fourth proportional to 80,439.60, 111,022.80 and 46,453.62 is: 64,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.60 : 111,022.80 = 46,453.62 : x
  2. Step 2: Convert to fraction form
    80,439.60/111,022.80 = 46,453.62/x
  3. Step 3: Cross multiply
    80,439.60x = 111,022.80 × 46,453.62
  4. Step 4: Simplify right side
    80,439.60x = 5,157,410,841.47
  5. Step 5: Solve for x
    x = 5,157,410,841.47/80,439.60
  6. Step 6: Final answer
    x = 64,115.32

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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.