Home / 86,761.45-119,729.97-48,520.58

Finding the Fourth Proportional to 86,761.45, 119,729.97 and 48,520.58

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Solution

The fourth proportional to 86,761.45, 119,729.97 and 48,520.58 is: 66,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,761.45 : 119,729.97 = 48,520.58 : x
  2. Step 2: Convert to fraction form
    86,761.45/119,729.97 = 48,520.58/x
  3. Step 3: Cross multiply
    86,761.45x = 119,729.97 × 48,520.58
  4. Step 4: Simplify right side
    86,761.45x = 5,809,366,989.13
  5. Step 5: Solve for x
    x = 5,809,366,989.13/86,761.45
  6. Step 6: Final answer
    x = 66,957.93

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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.