Home / 76,919.49-115,430.72-26,999.82

Finding the Fourth Proportional to 76,919.49, 115,430.72 and 26,999.82

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Solution

The fourth proportional to 76,919.49, 115,430.72 and 26,999.82 is: 40,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,919.49 : 115,430.72 = 26,999.82 : x
  2. Step 2: Convert to fraction form
    76,919.49/115,430.72 = 26,999.82/x
  3. Step 3: Cross multiply
    76,919.49x = 115,430.72 × 26,999.82
  4. Step 4: Simplify right side
    76,919.49x = 3,116,608,527.47
  5. Step 5: Solve for x
    x = 3,116,608,527.47/76,919.49
  6. Step 6: Final answer
    x = 40,517.80

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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.