Home / 51,366.12-77,027.31-20,179.50

Finding the Fourth Proportional to 51,366.12, 77,027.31 and 20,179.50

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Solution

The fourth proportional to 51,366.12, 77,027.31 and 20,179.50 is: 30,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,366.12 : 77,027.31 = 20,179.50 : x
  2. Step 2: Convert to fraction form
    51,366.12/77,027.31 = 20,179.50/x
  3. Step 3: Cross multiply
    51,366.12x = 77,027.31 × 20,179.50
  4. Step 4: Simplify right side
    51,366.12x = 1,554,372,602.15
  5. Step 5: Solve for x
    x = 1,554,372,602.15/51,366.12
  6. Step 6: Final answer
    x = 30,260.66

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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.