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Finding the Fourth Proportional to 86,694.80, 130,055.96 and 36,775.12

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Solution

The fourth proportional to 86,694.80, 130,055.96 and 36,775.12 is: 55,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.80 : 130,055.96 = 36,775.12 : x
  2. Step 2: Convert to fraction form
    86,694.80/130,055.96 = 36,775.12/x
  3. Step 3: Cross multiply
    86,694.80x = 130,055.96 × 36,775.12
  4. Step 4: Simplify right side
    86,694.80x = 4,782,823,535.72
  5. Step 5: Solve for x
    x = 4,782,823,535.72/86,694.80
  6. Step 6: Final answer
    x = 55,168.52

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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.