Home / 80,987.37-111,761.79-44,689.14

Finding the Fourth Proportional to 80,987.37, 111,761.79 and 44,689.14

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Solution

The fourth proportional to 80,987.37, 111,761.79 and 44,689.14 is: 61,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987.37 : 111,761.79 = 44,689.14 : x
  2. Step 2: Convert to fraction form
    80,987.37/111,761.79 = 44,689.14/x
  3. Step 3: Cross multiply
    80,987.37x = 111,761.79 × 44,689.14
  4. Step 4: Simplify right side
    80,987.37x = 4,994,538,279.96
  5. Step 5: Solve for x
    x = 4,994,538,279.96/80,987.37
  6. Step 6: Final answer
    x = 61,670.58

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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.