Home / 51,951.78-77,927.67-18,671.92

Finding the Fourth Proportional to 51,951.78, 77,927.67 and 18,671.92

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Solution

The fourth proportional to 51,951.78, 77,927.67 and 18,671.92 is: 28,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,951.78 : 77,927.67 = 18,671.92 : x
  2. Step 2: Convert to fraction form
    51,951.78/77,927.67 = 18,671.92/x
  3. Step 3: Cross multiply
    51,951.78x = 77,927.67 × 18,671.92
  4. Step 4: Simplify right side
    51,951.78x = 1,455,059,025.21
  5. Step 5: Solve for x
    x = 1,455,059,025.21/51,951.78
  6. Step 6: Final answer
    x = 28,007.88

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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.