Home / 51,995.71-78,003.29-20,833.39

Finding the Fourth Proportional to 51,995.71, 78,003.29 and 20,833.39

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Solution

The fourth proportional to 51,995.71, 78,003.29 and 20,833.39 is: 31,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,995.71 : 78,003.29 = 20,833.39 : x
  2. Step 2: Convert to fraction form
    51,995.71/78,003.29 = 20,833.39/x
  3. Step 3: Cross multiply
    51,995.71x = 78,003.29 × 20,833.39
  4. Step 4: Simplify right side
    51,995.71x = 1,625,072,961.85
  5. Step 5: Solve for x
    x = 1,625,072,961.85/51,995.71
  6. Step 6: Final answer
    x = 31,253.98

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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.