Home / 36,602.20-54,903.30-31,790.80

Finding the Fourth Proportional to 36,602.20, 54,903.30 and 31,790.80

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Solution

The fourth proportional to 36,602.20, 54,903.30 and 31,790.80 is: 47,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,602.20 : 54,903.30 = 31,790.80 : x
  2. Step 2: Convert to fraction form
    36,602.20/54,903.30 = 31,790.80/x
  3. Step 3: Cross multiply
    36,602.20x = 54,903.30 × 31,790.80
  4. Step 4: Simplify right side
    36,602.20x = 1,745,419,829.64
  5. Step 5: Solve for x
    x = 1,745,419,829.64/36,602.20
  6. Step 6: Final answer
    x = 47,686.20

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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.