Home / 80,731.36-111,464.16-50,528.96

Finding the Fourth Proportional to 80,731.36, 111,464.16 and 50,528.96

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Solution

The fourth proportional to 80,731.36, 111,464.16 and 50,528.96 is: 69,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,731.36 : 111,464.16 = 50,528.96 : x
  2. Step 2: Convert to fraction form
    80,731.36/111,464.16 = 50,528.96/x
  3. Step 3: Cross multiply
    80,731.36x = 111,464.16 × 50,528.96
  4. Step 4: Simplify right side
    80,731.36x = 5,632,168,082.07
  5. Step 5: Solve for x
    x = 5,632,168,082.07/80,731.36
  6. Step 6: Final answer
    x = 69,764.32

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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.