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Finding the Fourth Proportional to 60,491.44, 90,737.30 and 18,371.85

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Solution

The fourth proportional to 60,491.44, 90,737.30 and 18,371.85 is: 27,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.44 : 90,737.30 = 18,371.85 : x
  2. Step 2: Convert to fraction form
    60,491.44/90,737.30 = 18,371.85/x
  3. Step 3: Cross multiply
    60,491.44x = 90,737.30 × 18,371.85
  4. Step 4: Simplify right side
    60,491.44x = 1,667,012,065.01
  5. Step 5: Solve for x
    x = 1,667,012,065.01/60,491.44
  6. Step 6: Final answer
    x = 27,557.82

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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.