Home / 55,530.04-76,632.06-30,379

Finding the Fourth Proportional to 55,530.04, 76,632.06 and 30,379

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Solution

The fourth proportional to 55,530.04, 76,632.06 and 30,379 is: 41,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.04 : 76,632.06 = 30,379 : x
  2. Step 2: Convert to fraction form
    55,530.04/76,632.06 = 30,379/x
  3. Step 3: Cross multiply
    55,530.04x = 76,632.06 × 30,379
  4. Step 4: Simplify right side
    55,530.04x = 2,328,005,350.74
  5. Step 5: Solve for x
    x = 2,328,005,350.74/55,530.04
  6. Step 6: Final answer
    x = 41,923.35

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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.