Home / 55,585.08-83,378.42-18,145

Finding the Fourth Proportional to 55,585.08, 83,378.42 and 18,145

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Solution

The fourth proportional to 55,585.08, 83,378.42 and 18,145 is: 27,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,585.08 : 83,378.42 = 18,145 : x
  2. Step 2: Convert to fraction form
    55,585.08/83,378.42 = 18,145/x
  3. Step 3: Cross multiply
    55,585.08x = 83,378.42 × 18,145
  4. Step 4: Simplify right side
    55,585.08x = 1,512,901,430.90
  5. Step 5: Solve for x
    x = 1,512,901,430.90/55,585.08
  6. Step 6: Final answer
    x = 27,217.76

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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.