Home / 76,767.33-115,010.70-55,655.04

Finding the Fourth Proportional to 76,767.33, 115,010.70 and 55,655.04

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Solution

The fourth proportional to 76,767.33, 115,010.70 and 55,655.04 is: 83,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.33 : 115,010.70 = 55,655.04 : x
  2. Step 2: Convert to fraction form
    76,767.33/115,010.70 = 55,655.04/x
  3. Step 3: Cross multiply
    76,767.33x = 115,010.70 × 55,655.04
  4. Step 4: Simplify right side
    76,767.33x = 6,400,925,108.93
  5. Step 5: Solve for x
    x = 6,400,925,108.93/76,767.33
  6. Step 6: Final answer
    x = 83,380.85

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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.