Home / 75,405.57-113,108.28-19,245.68

Finding the Fourth Proportional to 75,405.57, 113,108.28 and 19,245.68

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Solution

The fourth proportional to 75,405.57, 113,108.28 and 19,245.68 is: 28,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,405.57 : 113,108.28 = 19,245.68 : x
  2. Step 2: Convert to fraction form
    75,405.57/113,108.28 = 19,245.68/x
  3. Step 3: Cross multiply
    75,405.57x = 113,108.28 × 19,245.68
  4. Step 4: Simplify right side
    75,405.57x = 2,176,846,293.16
  5. Step 5: Solve for x
    x = 2,176,846,293.16/75,405.57
  6. Step 6: Final answer
    x = 28,868.51

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1.5x scale

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.