Home / 54,741.20-82,114.23-21,458.30

Finding the Fourth Proportional to 54,741.20, 82,114.23 and 21,458.30

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Solution

The fourth proportional to 54,741.20, 82,114.23 and 21,458.30 is: 32,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,741.20 : 82,114.23 = 21,458.30 : x
  2. Step 2: Convert to fraction form
    54,741.20/82,114.23 = 21,458.30/x
  3. Step 3: Cross multiply
    54,741.20x = 82,114.23 × 21,458.30
  4. Step 4: Simplify right side
    54,741.20x = 1,762,031,781.61
  5. Step 5: Solve for x
    x = 1,762,031,781.61/54,741.20
  6. Step 6: Final answer
    x = 32,188.40

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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.