Home / 55,185.70-82,780.07-20,151.46

Finding the Fourth Proportional to 55,185.70, 82,780.07 and 20,151.46

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Solution

The fourth proportional to 55,185.70, 82,780.07 and 20,151.46 is: 30,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,185.70 : 82,780.07 = 20,151.46 : x
  2. Step 2: Convert to fraction form
    55,185.70/82,780.07 = 20,151.46/x
  3. Step 3: Cross multiply
    55,185.70x = 82,780.07 × 20,151.46
  4. Step 4: Simplify right side
    55,185.70x = 1,668,139,269.40
  5. Step 5: Solve for x
    x = 1,668,139,269.40/55,185.70
  6. Step 6: Final answer
    x = 30,227.75

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1.5x scale

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.