Home / 77,388.30-116,218.56-76,280.22

Finding the Fourth Proportional to 77,388.30, 116,218.56 and 76,280.22

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Solution

The fourth proportional to 77,388.30, 116,218.56 and 76,280.22 is: 114,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,388.30 : 116,218.56 = 76,280.22 : x
  2. Step 2: Convert to fraction form
    77,388.30/116,218.56 = 76,280.22/x
  3. Step 3: Cross multiply
    77,388.30x = 116,218.56 × 76,280.22
  4. Step 4: Simplify right side
    77,388.30x = 8,865,177,324.88
  5. Step 5: Solve for x
    x = 8,865,177,324.88/77,388.30
  6. Step 6: Final answer
    x = 114,554.49

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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.