Home / 80,281.19-110,783.30-43,975.41

Finding the Fourth Proportional to 80,281.19, 110,783.30 and 43,975.41

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Solution

The fourth proportional to 80,281.19, 110,783.30 and 43,975.41 is: 60,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,281.19 : 110,783.30 = 43,975.41 : x
  2. Step 2: Convert to fraction form
    80,281.19/110,783.30 = 43,975.41/x
  3. Step 3: Cross multiply
    80,281.19x = 110,783.30 × 43,975.41
  4. Step 4: Simplify right side
    80,281.19x = 4,871,740,818.78
  5. Step 5: Solve for x
    x = 4,871,740,818.78/80,281.19
  6. Step 6: Final answer
    x = 60,683.47

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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.