Home / 36,090.18-54,121.41-12,393.30

Finding the Fourth Proportional to 36,090.18, 54,121.41 and 12,393.30

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Solution

The fourth proportional to 36,090.18, 54,121.41 and 12,393.30 is: 18,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.18 : 54,121.41 = 12,393.30 : x
  2. Step 2: Convert to fraction form
    36,090.18/54,121.41 = 12,393.30/x
  3. Step 3: Cross multiply
    36,090.18x = 54,121.41 × 12,393.30
  4. Step 4: Simplify right side
    36,090.18x = 670,742,870.55
  5. Step 5: Solve for x
    x = 670,742,870.55/36,090.18
  6. Step 6: Final answer
    x = 18,585.19

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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.