Home / 54,335.85-81,438.17-39,507.99

Finding the Fourth Proportional to 54,335.85, 81,438.17 and 39,507.99

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Solution

The fourth proportional to 54,335.85, 81,438.17 and 39,507.99 is: 59,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,335.85 : 81,438.17 = 39,507.99 : x
  2. Step 2: Convert to fraction form
    54,335.85/81,438.17 = 39,507.99/x
  3. Step 3: Cross multiply
    54,335.85x = 81,438.17 × 39,507.99
  4. Step 4: Simplify right side
    54,335.85x = 3,217,458,208.44
  5. Step 5: Solve for x
    x = 3,217,458,208.44/54,335.85
  6. Step 6: Final answer
    x = 59,214.28

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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.