Home / 75,405.58-113,107.20-18,480.04

Finding the Fourth Proportional to 75,405.58, 113,107.20 and 18,480.04

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Solution

The fourth proportional to 75,405.58, 113,107.20 and 18,480.04 is: 27,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,405.58 : 113,107.20 = 18,480.04 : x
  2. Step 2: Convert to fraction form
    75,405.58/113,107.20 = 18,480.04/x
  3. Step 3: Cross multiply
    75,405.58x = 113,107.20 × 18,480.04
  4. Step 4: Simplify right side
    75,405.58x = 2,090,225,580.29
  5. Step 5: Solve for x
    x = 2,090,225,580.29/75,405.58
  6. Step 6: Final answer
    x = 27,719.77

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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.