Home / 109,689.28-164,499.90-39,559.48

Finding the Fourth Proportional to 109,689.28, 164,499.90 and 39,559.48

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Solution

The fourth proportional to 109,689.28, 164,499.90 and 39,559.48 is: 59,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,689.28 : 164,499.90 = 39,559.48 : x
  2. Step 2: Convert to fraction form
    109,689.28/164,499.90 = 39,559.48/x
  3. Step 3: Cross multiply
    109,689.28x = 164,499.90 × 39,559.48
  4. Step 4: Simplify right side
    109,689.28x = 6,507,530,504.05
  5. Step 5: Solve for x
    x = 6,507,530,504.05/109,689.28
  6. Step 6: Final answer
    x = 59,326.95

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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.