Home / 54,621.90-81,907.56-28,345.02

Finding the Fourth Proportional to 54,621.90, 81,907.56 and 28,345.02

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Solution

The fourth proportional to 54,621.90, 81,907.56 and 28,345.02 is: 42,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.90 : 81,907.56 = 28,345.02 : x
  2. Step 2: Convert to fraction form
    54,621.90/81,907.56 = 28,345.02/x
  3. Step 3: Cross multiply
    54,621.90x = 81,907.56 × 28,345.02
  4. Step 4: Simplify right side
    54,621.90x = 2,321,671,426.35
  5. Step 5: Solve for x
    x = 2,321,671,426.35/54,621.90
  6. Step 6: Final answer
    x = 42,504.41

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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.