Home / 51,303.78-76,965.60-19,711.50

Finding the Fourth Proportional to 51,303.78, 76,965.60 and 19,711.50

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Solution

The fourth proportional to 51,303.78, 76,965.60 and 19,711.50 is: 29,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,303.78 : 76,965.60 = 19,711.50 : x
  2. Step 2: Convert to fraction form
    51,303.78/76,965.60 = 19,711.50/x
  3. Step 3: Cross multiply
    51,303.78x = 76,965.60 × 19,711.50
  4. Step 4: Simplify right side
    51,303.78x = 1,517,107,424.40
  5. Step 5: Solve for x
    x = 1,517,107,424.40/51,303.78
  6. Step 6: Final answer
    x = 29,571.07

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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.