Home / 55,966.38-83,955.69-18,512.78

Finding the Fourth Proportional to 55,966.38, 83,955.69 and 18,512.78

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Solution

The fourth proportional to 55,966.38, 83,955.69 and 18,512.78 is: 27,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,966.38 : 83,955.69 = 18,512.78 : x
  2. Step 2: Convert to fraction form
    55,966.38/83,955.69 = 18,512.78/x
  3. Step 3: Cross multiply
    55,966.38x = 83,955.69 × 18,512.78
  4. Step 4: Simplify right side
    55,966.38x = 1,554,253,218.72
  5. Step 5: Solve for x
    x = 1,554,253,218.72/55,966.38
  6. Step 6: Final answer
    x = 27,771.19

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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.