Home / 55,940.19-77,197.63-30,789.69

Finding the Fourth Proportional to 55,940.19, 77,197.63 and 30,789.69

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Solution

The fourth proportional to 55,940.19, 77,197.63 and 30,789.69 is: 42,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.19 : 77,197.63 = 30,789.69 : x
  2. Step 2: Convert to fraction form
    55,940.19/77,197.63 = 30,789.69/x
  3. Step 3: Cross multiply
    55,940.19x = 77,197.63 × 30,789.69
  4. Step 4: Simplify right side
    55,940.19x = 2,376,891,096.43
  5. Step 5: Solve for x
    x = 2,376,891,096.43/55,940.19
  6. Step 6: Final answer
    x = 42,489.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.