Home / 76,445.28-114,609.60-43,202.88

Finding the Fourth Proportional to 76,445.28, 114,609.60 and 43,202.88

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Solution

The fourth proportional to 76,445.28, 114,609.60 and 43,202.88 is: 64,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,445.28 : 114,609.60 = 43,202.88 : x
  2. Step 2: Convert to fraction form
    76,445.28/114,609.60 = 43,202.88/x
  3. Step 3: Cross multiply
    76,445.28x = 114,609.60 × 43,202.88
  4. Step 4: Simplify right side
    76,445.28x = 4,951,464,795.65
  5. Step 5: Solve for x
    x = 4,951,464,795.65/76,445.28
  6. Step 6: Final answer
    x = 64,771.36

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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.