Home / 54,878.12-82,317.14-15,435.21

Finding the Fourth Proportional to 54,878.12, 82,317.14 and 15,435.21

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Solution

The fourth proportional to 54,878.12, 82,317.14 and 15,435.21 is: 23,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,878.12 : 82,317.14 = 15,435.21 : x
  2. Step 2: Convert to fraction form
    54,878.12/82,317.14 = 15,435.21/x
  3. Step 3: Cross multiply
    54,878.12x = 82,317.14 × 15,435.21
  4. Step 4: Simplify right side
    54,878.12x = 1,270,582,265.32
  5. Step 5: Solve for x
    x = 1,270,582,265.32/54,878.12
  6. Step 6: Final answer
    x = 23,152.80

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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.