Home / 51,295.20-76,896.36-20,122.08

Finding the Fourth Proportional to 51,295.20, 76,896.36 and 20,122.08

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Solution

The fourth proportional to 51,295.20, 76,896.36 and 20,122.08 is: 30,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,295.20 : 76,896.36 = 20,122.08 : x
  2. Step 2: Convert to fraction form
    51,295.20/76,896.36 = 20,122.08/x
  3. Step 3: Cross multiply
    51,295.20x = 76,896.36 × 20,122.08
  4. Step 4: Simplify right side
    51,295.20x = 1,547,314,707.63
  5. Step 5: Solve for x
    x = 1,547,314,707.63/51,295.20
  6. Step 6: Final answer
    x = 30,164.90

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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.