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Finding the Fourth Proportional to 87,775.80, 131,674.50 and 28,595.58

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Solution

The fourth proportional to 87,775.80, 131,674.50 and 28,595.58 is: 42,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.80 : 131,674.50 = 28,595.58 : x
  2. Step 2: Convert to fraction form
    87,775.80/131,674.50 = 28,595.58/x
  3. Step 3: Cross multiply
    87,775.80x = 131,674.50 × 28,595.58
  4. Step 4: Simplify right side
    87,775.80x = 3,765,308,698.71
  5. Step 5: Solve for x
    x = 3,765,308,698.71/87,775.80
  6. Step 6: Final answer
    x = 42,896.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.