Home / 286,579.80-429,869.16-76,217.94

Finding the Fourth Proportional to 286,579.80, 429,869.16 and 76,217.94

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Solution

The fourth proportional to 286,579.80, 429,869.16 and 76,217.94 is: 114,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,579.80 : 429,869.16 = 76,217.94 : x
  2. Step 2: Convert to fraction form
    286,579.80/429,869.16 = 76,217.94/x
  3. Step 3: Cross multiply
    286,579.80x = 429,869.16 × 76,217.94
  4. Step 4: Simplify right side
    286,579.80x = 32,763,741,844.73
  5. Step 5: Solve for x
    x = 32,763,741,844.73/286,579.80
  6. Step 6: Final answer
    x = 114,326.77

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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.