Home / 45,385.07-68,006.48-28,709.88

Finding the Fourth Proportional to 45,385.07, 68,006.48 and 28,709.88

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Solution

The fourth proportional to 45,385.07, 68,006.48 and 28,709.88 is: 43,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,385.07 : 68,006.48 = 28,709.88 : x
  2. Step 2: Convert to fraction form
    45,385.07/68,006.48 = 28,709.88/x
  3. Step 3: Cross multiply
    45,385.07x = 68,006.48 × 28,709.88
  4. Step 4: Simplify right side
    45,385.07x = 1,952,457,736.47
  5. Step 5: Solve for x
    x = 1,952,457,736.47/45,385.07
  6. Step 6: Final answer
    x = 43,019.83

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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.