Home / 75,902.32-113,865.72-28,521.10

Finding the Fourth Proportional to 75,902.32, 113,865.72 and 28,521.10

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Solution

The fourth proportional to 75,902.32, 113,865.72 and 28,521.10 is: 42,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,902.32 : 113,865.72 = 28,521.10 : x
  2. Step 2: Convert to fraction form
    75,902.32/113,865.72 = 28,521.10/x
  3. Step 3: Cross multiply
    75,902.32x = 113,865.72 × 28,521.10
  4. Step 4: Simplify right side
    75,902.32x = 3,247,575,586.69
  5. Step 5: Solve for x
    x = 3,247,575,586.69/75,902.32
  6. Step 6: Final answer
    x = 42,786.25

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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.