Home / 36,984.80-55,412.40-30,375.20

Finding the Fourth Proportional to 36,984.80, 55,412.40 and 30,375.20

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Solution

The fourth proportional to 36,984.80, 55,412.40 and 30,375.20 is: 45,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,984.80 : 55,412.40 = 30,375.20 : x
  2. Step 2: Convert to fraction form
    36,984.80/55,412.40 = 30,375.20/x
  3. Step 3: Cross multiply
    36,984.80x = 55,412.40 × 30,375.20
  4. Step 4: Simplify right side
    36,984.80x = 1,683,162,732.48
  5. Step 5: Solve for x
    x = 1,683,162,732.48/36,984.80
  6. Step 6: Final answer
    x = 45,509.58

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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.