Home / 48,660.30-72,990.45-40,365.90

Finding the Fourth Proportional to 48,660.30, 72,990.45 and 40,365.90

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Solution

The fourth proportional to 48,660.30, 72,990.45 and 40,365.90 is: 60,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,660.30 : 72,990.45 = 40,365.90 : x
  2. Step 2: Convert to fraction form
    48,660.30/72,990.45 = 40,365.90/x
  3. Step 3: Cross multiply
    48,660.30x = 72,990.45 × 40,365.90
  4. Step 4: Simplify right side
    48,660.30x = 2,946,325,205.66
  5. Step 5: Solve for x
    x = 2,946,325,205.66/48,660.30
  6. Step 6: Final answer
    x = 60,548.85

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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.