Home / 63,678.43-87,876.63-39,819.07

Finding the Fourth Proportional to 63,678.43, 87,876.63 and 39,819.07

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Solution

The fourth proportional to 63,678.43, 87,876.63 and 39,819.07 is: 54,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.43 : 87,876.63 = 39,819.07 : x
  2. Step 2: Convert to fraction form
    63,678.43/87,876.63 = 39,819.07/x
  3. Step 3: Cross multiply
    63,678.43x = 87,876.63 × 39,819.07
  4. Step 4: Simplify right side
    63,678.43x = 3,499,165,461.64
  5. Step 5: Solve for x
    x = 3,499,165,461.64/63,678.43
  6. Step 6: Final answer
    x = 54,950.56

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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.