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Finding the Fourth Proportional to 76,739.54, 115,119.04 and 21,335.54

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Solution

The fourth proportional to 76,739.54, 115,119.04 and 21,335.54 is: 32,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,739.54 : 115,119.04 = 21,335.54 : x
  2. Step 2: Convert to fraction form
    76,739.54/115,119.04 = 21,335.54/x
  3. Step 3: Cross multiply
    76,739.54x = 115,119.04 × 21,335.54
  4. Step 4: Simplify right side
    76,739.54x = 2,456,126,882.68
  5. Step 5: Solve for x
    x = 2,456,126,882.68/76,739.54
  6. Step 6: Final answer
    x = 32,006.02

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1.5x scale

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.