Home / 54,675.18-82,012.68-42,213.30

Finding the Fourth Proportional to 54,675.18, 82,012.68 and 42,213.30

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Solution

The fourth proportional to 54,675.18, 82,012.68 and 42,213.30 is: 63,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,675.18 : 82,012.68 = 42,213.30 : x
  2. Step 2: Convert to fraction form
    54,675.18/82,012.68 = 42,213.30/x
  3. Step 3: Cross multiply
    54,675.18x = 82,012.68 × 42,213.30
  4. Step 4: Simplify right side
    54,675.18x = 3,462,025,864.64
  5. Step 5: Solve for x
    x = 3,462,025,864.64/54,675.18
  6. Step 6: Final answer
    x = 63,319.88

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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.