Home / 54,005.40-81,008.10-50,943.60

Finding the Fourth Proportional to 54,005.40, 81,008.10 and 50,943.60

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Solution

The fourth proportional to 54,005.40, 81,008.10 and 50,943.60 is: 76,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,005.40 : 81,008.10 = 50,943.60 : x
  2. Step 2: Convert to fraction form
    54,005.40/81,008.10 = 50,943.60/x
  3. Step 3: Cross multiply
    54,005.40x = 81,008.10 × 50,943.60
  4. Step 4: Simplify right side
    54,005.40x = 4,126,844,243.16
  5. Step 5: Solve for x
    x = 4,126,844,243.16/54,005.40
  6. Step 6: Final answer
    x = 76,415.40

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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.