Home / 55,215.16-82,760.67-28,121.47

Finding the Fourth Proportional to 55,215.16, 82,760.67 and 28,121.47

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Solution

The fourth proportional to 55,215.16, 82,760.67 and 28,121.47 is: 42,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.16 : 82,760.67 = 28,121.47 : x
  2. Step 2: Convert to fraction form
    55,215.16/82,760.67 = 28,121.47/x
  3. Step 3: Cross multiply
    55,215.16x = 82,760.67 × 28,121.47
  4. Step 4: Simplify right side
    55,215.16x = 2,327,351,491.68
  5. Step 5: Solve for x
    x = 2,327,351,491.68/55,215.16
  6. Step 6: Final answer
    x = 42,150.59

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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.