Home / 54,531.02-81,840.27-28,243.28

Finding the Fourth Proportional to 54,531.02, 81,840.27 and 28,243.28

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Solution

The fourth proportional to 54,531.02, 81,840.27 and 28,243.28 is: 42,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,531.02 : 81,840.27 = 28,243.28 : x
  2. Step 2: Convert to fraction form
    54,531.02/81,840.27 = 28,243.28/x
  3. Step 3: Cross multiply
    54,531.02x = 81,840.27 × 28,243.28
  4. Step 4: Simplify right side
    54,531.02x = 2,311,437,110.47
  5. Step 5: Solve for x
    x = 2,311,437,110.47/54,531.02
  6. Step 6: Final answer
    x = 42,387.57

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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.