Home / 48,465.30-72,679.23-18,879.42

Finding the Fourth Proportional to 48,465.30, 72,679.23 and 18,879.42

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Solution

The fourth proportional to 48,465.30, 72,679.23 and 18,879.42 is: 28,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,465.30 : 72,679.23 = 18,879.42 : x
  2. Step 2: Convert to fraction form
    48,465.30/72,679.23 = 18,879.42/x
  3. Step 3: Cross multiply
    48,465.30x = 72,679.23 × 18,879.42
  4. Step 4: Simplify right side
    48,465.30x = 1,372,141,708.45
  5. Step 5: Solve for x
    x = 1,372,141,708.45/48,465.30
  6. Step 6: Final answer
    x = 28,311.84

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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.