Home / 55,207.05-82,811.93-20,146.70

Finding the Fourth Proportional to 55,207.05, 82,811.93 and 20,146.70

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Solution

The fourth proportional to 55,207.05, 82,811.93 and 20,146.70 is: 30,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207.05 : 82,811.93 = 20,146.70 : x
  2. Step 2: Convert to fraction form
    55,207.05/82,811.93 = 20,146.70/x
  3. Step 3: Cross multiply
    55,207.05x = 82,811.93 × 20,146.70
  4. Step 4: Simplify right side
    55,207.05x = 1,668,387,110.13
  5. Step 5: Solve for x
    x = 1,668,387,110.13/55,207.05
  6. Step 6: Final answer
    x = 30,220.54

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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.