Home / 48,620.12-72,875.97-20,531.75

Finding the Fourth Proportional to 48,620.12, 72,875.97 and 20,531.75

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Solution

The fourth proportional to 48,620.12, 72,875.97 and 20,531.75 is: 30,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,620.12 : 72,875.97 = 20,531.75 : x
  2. Step 2: Convert to fraction form
    48,620.12/72,875.97 = 20,531.75/x
  3. Step 3: Cross multiply
    48,620.12x = 72,875.97 × 20,531.75
  4. Step 4: Simplify right side
    48,620.12x = 1,496,270,832.67
  5. Step 5: Solve for x
    x = 1,496,270,832.67/48,620.12
  6. Step 6: Final answer
    x = 30,774.73

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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.