Home / 55,529.80-76,630.50-30,379

Finding the Fourth Proportional to 55,529.80, 76,630.50 and 30,379

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Solution

The fourth proportional to 55,529.80, 76,630.50 and 30,379 is: 41,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,529.80 : 76,630.50 = 30,379 : x
  2. Step 2: Convert to fraction form
    55,529.80/76,630.50 = 30,379/x
  3. Step 3: Cross multiply
    55,529.80x = 76,630.50 × 30,379
  4. Step 4: Simplify right side
    55,529.80x = 2,327,957,959.50
  5. Step 5: Solve for x
    x = 2,327,957,959.50/55,529.80
  6. Step 6: Final answer
    x = 41,922.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.