Home / 286,639.38-429,968.78-76,277.52

Finding the Fourth Proportional to 286,639.38, 429,968.78 and 76,277.52

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Solution

The fourth proportional to 286,639.38, 429,968.78 and 76,277.52 is: 114,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,639.38 : 429,968.78 = 76,277.52 : x
  2. Step 2: Convert to fraction form
    286,639.38/429,968.78 = 76,277.52/x
  3. Step 3: Cross multiply
    286,639.38x = 429,968.78 × 76,277.52
  4. Step 4: Simplify right side
    286,639.38x = 32,796,951,834.44
  5. Step 5: Solve for x
    x = 32,796,951,834.44/286,639.38
  6. Step 6: Final answer
    x = 114,418.86

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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.