Home / 54,387.72-81,579.52-14,943.80

Finding the Fourth Proportional to 54,387.72, 81,579.52 and 14,943.80

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Solution

The fourth proportional to 54,387.72, 81,579.52 and 14,943.80 is: 22,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,387.72 : 81,579.52 = 14,943.80 : x
  2. Step 2: Convert to fraction form
    54,387.72/81,579.52 = 14,943.80/x
  3. Step 3: Cross multiply
    54,387.72x = 81,579.52 × 14,943.80
  4. Step 4: Simplify right side
    54,387.72x = 1,219,108,253.60
  5. Step 5: Solve for x
    x = 1,219,108,253.60/54,387.72
  6. Step 6: Final answer
    x = 22,415.14

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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.