Home / 81,815.76-112,903.20-46,007.28

Finding the Fourth Proportional to 81,815.76, 112,903.20 and 46,007.28

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Solution

The fourth proportional to 81,815.76, 112,903.20 and 46,007.28 is: 63,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,815.76 : 112,903.20 = 46,007.28 : x
  2. Step 2: Convert to fraction form
    81,815.76/112,903.20 = 46,007.28/x
  3. Step 3: Cross multiply
    81,815.76x = 112,903.20 × 46,007.28
  4. Step 4: Simplify right side
    81,815.76x = 5,194,369,135.30
  5. Step 5: Solve for x
    x = 5,194,369,135.30/81,815.76
  6. Step 6: Final answer
    x = 63,488.61

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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.