Home / 86,764.08-119,736.68-49,040.72

Finding the Fourth Proportional to 86,764.08, 119,736.68 and 49,040.72

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Solution

The fourth proportional to 86,764.08, 119,736.68 and 49,040.72 is: 67,677.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,764.08 : 119,736.68 = 49,040.72 : x
  2. Step 2: Convert to fraction form
    86,764.08/119,736.68 = 49,040.72/x
  3. Step 3: Cross multiply
    86,764.08x = 119,736.68 × 49,040.72
  4. Step 4: Simplify right side
    86,764.08x = 5,871,972,997.61
  5. Step 5: Solve for x
    x = 5,871,972,997.61/86,764.08
  6. Step 6: Final answer
    x = 67,677.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.