Home / 47,115.36-70,662.24-28,145.34

Finding the Fourth Proportional to 47,115.36, 70,662.24 and 28,145.34

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Solution

The fourth proportional to 47,115.36, 70,662.24 and 28,145.34 is: 42,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.36 : 70,662.24 = 28,145.34 : x
  2. Step 2: Convert to fraction form
    47,115.36/70,662.24 = 28,145.34/x
  3. Step 3: Cross multiply
    47,115.36x = 70,662.24 × 28,145.34
  4. Step 4: Simplify right side
    47,115.36x = 1,988,812,769.96
  5. Step 5: Solve for x
    x = 1,988,812,769.96/47,115.36
  6. Step 6: Final answer
    x = 42,211.56

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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.