Home / 52,206.28-78,312.78-21,040.84

Finding the Fourth Proportional to 52,206.28, 78,312.78 and 21,040.84

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Solution

The fourth proportional to 52,206.28, 78,312.78 and 21,040.84 is: 31,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,206.28 : 78,312.78 = 21,040.84 : x
  2. Step 2: Convert to fraction form
    52,206.28/78,312.78 = 21,040.84/x
  3. Step 3: Cross multiply
    52,206.28x = 78,312.78 × 21,040.84
  4. Step 4: Simplify right side
    52,206.28x = 1,647,766,673.94
  5. Step 5: Solve for x
    x = 1,647,766,673.94/52,206.28
  6. Step 6: Final answer
    x = 31,562.61

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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.