Home / 54,261.02-81,400.73-18,712.69

Finding the Fourth Proportional to 54,261.02, 81,400.73 and 18,712.69

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Solution

The fourth proportional to 54,261.02, 81,400.73 and 18,712.69 is: 28,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.02 : 81,400.73 = 18,712.69 : x
  2. Step 2: Convert to fraction form
    54,261.02/81,400.73 = 18,712.69/x
  3. Step 3: Cross multiply
    54,261.02x = 81,400.73 × 18,712.69
  4. Step 4: Simplify right side
    54,261.02x = 1,523,226,329.20
  5. Step 5: Solve for x
    x = 1,523,226,329.20/54,261.02
  6. Step 6: Final answer
    x = 28,072.20

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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.