Home / 76,934.08-115,415.16-35,380

Finding the Fourth Proportional to 76,934.08, 115,415.16 and 35,380

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Solution

The fourth proportional to 76,934.08, 115,415.16 and 35,380 is: 53,076.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,934.08 : 115,415.16 = 35,380 : x
  2. Step 2: Convert to fraction form
    76,934.08/115,415.16 = 35,380/x
  3. Step 3: Cross multiply
    76,934.08x = 115,415.16 × 35,380
  4. Step 4: Simplify right side
    76,934.08x = 4,083,388,360.80
  5. Step 5: Solve for x
    x = 4,083,388,360.80/76,934.08
  6. Step 6: Final answer
    x = 53,076.46

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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.