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Finding the Fourth Proportional to 51,978.01, 77,955.09 and 14,540.73

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Solution

The fourth proportional to 51,978.01, 77,955.09 and 14,540.73 is: 21,807.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,978.01 : 77,955.09 = 14,540.73 : x
  2. Step 2: Convert to fraction form
    51,978.01/77,955.09 = 14,540.73/x
  3. Step 3: Cross multiply
    51,978.01x = 77,955.09 × 14,540.73
  4. Step 4: Simplify right side
    51,978.01x = 1,133,523,915.82
  5. Step 5: Solve for x
    x = 1,133,523,915.82/51,978.01
  6. Step 6: Final answer
    x = 21,807.76

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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.