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Finding the Fourth Proportional to 55,763.82, 83,659.91 and 15,782.76

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Solution

The fourth proportional to 55,763.82, 83,659.91 and 15,782.76 is: 23,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,763.82 : 83,659.91 = 15,782.76 : x
  2. Step 2: Convert to fraction form
    55,763.82/83,659.91 = 15,782.76/x
  3. Step 3: Cross multiply
    55,763.82x = 83,659.91 × 15,782.76
  4. Step 4: Simplify right side
    55,763.82x = 1,320,384,202.24
  5. Step 5: Solve for x
    x = 1,320,384,202.24/55,763.82
  6. Step 6: Final answer
    x = 23,678.15

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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.