Home / 51,315.92-76,984.70-19,295.19

Finding the Fourth Proportional to 51,315.92, 76,984.70 and 19,295.19

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Solution

The fourth proportional to 51,315.92, 76,984.70 and 19,295.19 is: 28,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.92 : 76,984.70 = 19,295.19 : x
  2. Step 2: Convert to fraction form
    51,315.92/76,984.70 = 19,295.19/x
  3. Step 3: Cross multiply
    51,315.92x = 76,984.70 × 19,295.19
  4. Step 4: Simplify right side
    51,315.92x = 1,485,434,317.12
  5. Step 5: Solve for x
    x = 1,485,434,317.12/51,315.92
  6. Step 6: Final answer
    x = 28,946.85

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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.