Home / 53,851.32-80,770.83-20,570.65

Finding the Fourth Proportional to 53,851.32, 80,770.83 and 20,570.65

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Solution

The fourth proportional to 53,851.32, 80,770.83 and 20,570.65 is: 30,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.32 : 80,770.83 = 20,570.65 : x
  2. Step 2: Convert to fraction form
    53,851.32/80,770.83 = 20,570.65/x
  3. Step 3: Cross multiply
    53,851.32x = 80,770.83 × 20,570.65
  4. Step 4: Simplify right side
    53,851.32x = 1,661,508,474.14
  5. Step 5: Solve for x
    x = 1,661,508,474.14/53,851.32
  6. Step 6: Final answer
    x = 30,853.63

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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.