Home / 48,002.30-72,003.45-30,491.90

Finding the Fourth Proportional to 48,002.30, 72,003.45 and 30,491.90

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Solution

The fourth proportional to 48,002.30, 72,003.45 and 30,491.90 is: 45,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,002.30 : 72,003.45 = 30,491.90 : x
  2. Step 2: Convert to fraction form
    48,002.30/72,003.45 = 30,491.90/x
  3. Step 3: Cross multiply
    48,002.30x = 72,003.45 × 30,491.90
  4. Step 4: Simplify right side
    48,002.30x = 2,195,521,997.06
  5. Step 5: Solve for x
    x = 2,195,521,997.06/48,002.30
  6. Step 6: Final answer
    x = 45,737.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.