Home / 40,128.72-60,195.81-12,047.64

Finding the Fourth Proportional to 40,128.72, 60,195.81 and 12,047.64

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Solution

The fourth proportional to 40,128.72, 60,195.81 and 12,047.64 is: 18,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.72 : 60,195.81 = 12,047.64 : x
  2. Step 2: Convert to fraction form
    40,128.72/60,195.81 = 12,047.64/x
  3. Step 3: Cross multiply
    40,128.72x = 60,195.81 × 12,047.64
  4. Step 4: Simplify right side
    40,128.72x = 725,217,200.06
  5. Step 5: Solve for x
    x = 725,217,200.06/40,128.72
  6. Step 6: Final answer
    x = 18,072.28

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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.