Home / 48,537.77-72,776.92-18,921

Finding the Fourth Proportional to 48,537.77, 72,776.92 and 18,921

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Solution

The fourth proportional to 48,537.77, 72,776.92 and 18,921 is: 28,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,537.77 : 72,776.92 = 18,921 : x
  2. Step 2: Convert to fraction form
    48,537.77/72,776.92 = 18,921/x
  3. Step 3: Cross multiply
    48,537.77x = 72,776.92 × 18,921
  4. Step 4: Simplify right side
    48,537.77x = 1,377,012,020.54
  5. Step 5: Solve for x
    x = 1,377,012,020.54/48,537.77
  6. Step 6: Final answer
    x = 28,369.91

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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.