Home / 48,546.96-72,799.84-20,479.60

Finding the Fourth Proportional to 48,546.96, 72,799.84 and 20,479.60

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Solution

The fourth proportional to 48,546.96, 72,799.84 and 20,479.60 is: 30,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,546.96 : 72,799.84 = 20,479.60 : x
  2. Step 2: Convert to fraction form
    48,546.96/72,799.84 = 20,479.60/x
  3. Step 3: Cross multiply
    48,546.96x = 72,799.84 × 20,479.60
  4. Step 4: Simplify right side
    48,546.96x = 1,490,911,603.26
  5. Step 5: Solve for x
    x = 1,490,911,603.26/48,546.96
  6. Step 6: Final answer
    x = 30,710.71

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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.