Home / 81,163.62-112,006.35-45,355.14

Finding the Fourth Proportional to 81,163.62, 112,006.35 and 45,355.14

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Solution

The fourth proportional to 81,163.62, 112,006.35 and 45,355.14 is: 62,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,163.62 : 112,006.35 = 45,355.14 : x
  2. Step 2: Convert to fraction form
    81,163.62/112,006.35 = 45,355.14/x
  3. Step 3: Cross multiply
    81,163.62x = 112,006.35 × 45,355.14
  4. Step 4: Simplify right side
    81,163.62x = 5,080,063,685.14
  5. Step 5: Solve for x
    x = 5,080,063,685.14/81,163.62
  6. Step 6: Final answer
    x = 62,590.40

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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.