Home / 52,515.04-78,749.52-19,660

Finding the Fourth Proportional to 52,515.04, 78,749.52 and 19,660

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Solution

The fourth proportional to 52,515.04, 78,749.52 and 19,660 is: 29,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,515.04 : 78,749.52 = 19,660 : x
  2. Step 2: Convert to fraction form
    52,515.04/78,749.52 = 19,660/x
  3. Step 3: Cross multiply
    52,515.04x = 78,749.52 × 19,660
  4. Step 4: Simplify right side
    52,515.04x = 1,548,215,563.20
  5. Step 5: Solve for x
    x = 1,548,215,563.20/52,515.04
  6. Step 6: Final answer
    x = 29,481.37

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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.