Home / 77,769.12-116,713.20-60,195.36

Finding the Fourth Proportional to 77,769.12, 116,713.20 and 60,195.36

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Solution

The fourth proportional to 77,769.12, 116,713.20 and 60,195.36 is: 90,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,769.12 : 116,713.20 = 60,195.36 : x
  2. Step 2: Convert to fraction form
    77,769.12/116,713.20 = 60,195.36/x
  3. Step 3: Cross multiply
    77,769.12x = 116,713.20 × 60,195.36
  4. Step 4: Simplify right side
    77,769.12x = 7,025,593,090.75
  5. Step 5: Solve for x
    x = 7,025,593,090.75/77,769.12
  6. Step 6: Final answer
    x = 90,339.11

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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.