Home / 55,780.20-83,274.21-53,447.40

Finding the Fourth Proportional to 55,780.20, 83,274.21 and 53,447.40

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Solution

The fourth proportional to 55,780.20, 83,274.21 and 53,447.40 is: 79,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.20 : 83,274.21 = 53,447.40 : x
  2. Step 2: Convert to fraction form
    55,780.20/83,274.21 = 53,447.40/x
  3. Step 3: Cross multiply
    55,780.20x = 83,274.21 × 53,447.40
  4. Step 4: Simplify right side
    55,780.20x = 4,450,790,011.55
  5. Step 5: Solve for x
    x = 4,450,790,011.55/55,780.20
  6. Step 6: Final answer
    x = 79,791.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.