Home / 51,842.56-77,703.14-19,800.64

Finding the Fourth Proportional to 51,842.56, 77,703.14 and 19,800.64

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Solution

The fourth proportional to 51,842.56, 77,703.14 and 19,800.64 is: 29,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,842.56 : 77,703.14 = 19,800.64 : x
  2. Step 2: Convert to fraction form
    51,842.56/77,703.14 = 19,800.64/x
  3. Step 3: Cross multiply
    51,842.56x = 77,703.14 × 19,800.64
  4. Step 4: Simplify right side
    51,842.56x = 1,538,571,414.49
  5. Step 5: Solve for x
    x = 1,538,571,414.49/51,842.56
  6. Step 6: Final answer
    x = 29,677.77

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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.