Home / 40,072.12-60,109.56-13,776.64

Finding the Fourth Proportional to 40,072.12, 60,109.56 and 13,776.64

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Solution

The fourth proportional to 40,072.12, 60,109.56 and 13,776.64 is: 20,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,072.12 : 60,109.56 = 13,776.64 : x
  2. Step 2: Convert to fraction form
    40,072.12/60,109.56 = 13,776.64/x
  3. Step 3: Cross multiply
    40,072.12x = 60,109.56 × 13,776.64
  4. Step 4: Simplify right side
    40,072.12x = 828,107,768.68
  5. Step 5: Solve for x
    x = 828,107,768.68/40,072.12
  6. Step 6: Final answer
    x = 20,665.43

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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.