Home / 54,553.45-75,284.21-30,679.91

Finding the Fourth Proportional to 54,553.45, 75,284.21 and 30,679.91

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Solution

The fourth proportional to 54,553.45, 75,284.21 and 30,679.91 is: 42,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,553.45 : 75,284.21 = 30,679.91 : x
  2. Step 2: Convert to fraction form
    54,553.45/75,284.21 = 30,679.91/x
  3. Step 3: Cross multiply
    54,553.45x = 75,284.21 × 30,679.91
  4. Step 4: Simplify right side
    54,553.45x = 2,309,712,787.22
  5. Step 5: Solve for x
    x = 2,309,712,787.22/54,553.45
  6. Step 6: Final answer
    x = 42,338.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.