Home / 112,977.92-169,497.60-39,111.68

Finding the Fourth Proportional to 112,977.92, 169,497.60 and 39,111.68

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Solution

The fourth proportional to 112,977.92, 169,497.60 and 39,111.68 is: 58,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,977.92 : 169,497.60 = 39,111.68 : x
  2. Step 2: Convert to fraction form
    112,977.92/169,497.60 = 39,111.68/x
  3. Step 3: Cross multiply
    112,977.92x = 169,497.60 × 39,111.68
  4. Step 4: Simplify right side
    112,977.92x = 6,629,335,891.97
  5. Step 5: Solve for x
    x = 6,629,335,891.97/112,977.92
  6. Step 6: Final answer
    x = 58,678.15

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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.