Home / 51,214.72-76,825.12-14,278.72

Finding the Fourth Proportional to 51,214.72, 76,825.12 and 14,278.72

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Solution

The fourth proportional to 51,214.72, 76,825.12 and 14,278.72 is: 21,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,214.72 : 76,825.12 = 14,278.72 : x
  2. Step 2: Convert to fraction form
    51,214.72/76,825.12 = 14,278.72/x
  3. Step 3: Cross multiply
    51,214.72x = 76,825.12 × 14,278.72
  4. Step 4: Simplify right side
    51,214.72x = 1,096,964,377.45
  5. Step 5: Solve for x
    x = 1,096,964,377.45/51,214.72
  6. Step 6: Final answer
    x = 21,418.93

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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.