Home / 55,318.50-76,339.53-30,168

Finding the Fourth Proportional to 55,318.50, 76,339.53 and 30,168

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Solution

The fourth proportional to 55,318.50, 76,339.53 and 30,168 is: 41,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.50 : 76,339.53 = 30,168 : x
  2. Step 2: Convert to fraction form
    55,318.50/76,339.53 = 30,168/x
  3. Step 3: Cross multiply
    55,318.50x = 76,339.53 × 30,168
  4. Step 4: Simplify right side
    55,318.50x = 2,303,010,941.04
  5. Step 5: Solve for x
    x = 2,303,010,941.04/55,318.50
  6. Step 6: Final answer
    x = 41,631.84

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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.