Home / 81,929.76-113,063.31-46,120.32

Finding the Fourth Proportional to 81,929.76, 113,063.31 and 46,120.32

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Solution

The fourth proportional to 81,929.76, 113,063.31 and 46,120.32 is: 63,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,929.76 : 113,063.31 = 46,120.32 : x
  2. Step 2: Convert to fraction form
    81,929.76/113,063.31 = 46,120.32/x
  3. Step 3: Cross multiply
    81,929.76x = 113,063.31 × 46,120.32
  4. Step 4: Simplify right side
    81,929.76x = 5,214,516,037.46
  5. Step 5: Solve for x
    x = 5,214,516,037.46/81,929.76
  6. Step 6: Final answer
    x = 63,646.18

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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.