Home / 112,539.78-168,760.44-53,392.32

Finding the Fourth Proportional to 112,539.78, 168,760.44 and 53,392.32

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Solution

The fourth proportional to 112,539.78, 168,760.44 and 53,392.32 is: 80,065.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,539.78 : 168,760.44 = 53,392.32 : x
  2. Step 2: Convert to fraction form
    112,539.78/168,760.44 = 53,392.32/x
  3. Step 3: Cross multiply
    112,539.78x = 168,760.44 × 53,392.32
  4. Step 4: Simplify right side
    112,539.78x = 9,010,511,415.82
  5. Step 5: Solve for x
    x = 9,010,511,415.82/112,539.78
  6. Step 6: Final answer
    x = 80,065.12

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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.