Home / 55,323.04-76,344.96-30,172

Finding the Fourth Proportional to 55,323.04, 76,344.96 and 30,172

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Solution

The fourth proportional to 55,323.04, 76,344.96 and 30,172 is: 41,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.04 : 76,344.96 = 30,172 : x
  2. Step 2: Convert to fraction form
    55,323.04/76,344.96 = 30,172/x
  3. Step 3: Cross multiply
    55,323.04x = 76,344.96 × 30,172
  4. Step 4: Simplify right side
    55,323.04x = 2,303,480,133.12
  5. Step 5: Solve for x
    x = 2,303,480,133.12/55,323.04
  6. Step 6: Final answer
    x = 41,636.90

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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.