Home / 87,574.60-120,855.96-51,795.28

Finding the Fourth Proportional to 87,574.60, 120,855.96 and 51,795.28

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Solution

The fourth proportional to 87,574.60, 120,855.96 and 51,795.28 is: 71,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,574.60 : 120,855.96 = 51,795.28 : x
  2. Step 2: Convert to fraction form
    87,574.60/120,855.96 = 51,795.28/x
  3. Step 3: Cross multiply
    87,574.60x = 120,855.96 × 51,795.28
  4. Step 4: Simplify right side
    87,574.60x = 6,259,768,287.87
  5. Step 5: Solve for x
    x = 6,259,768,287.87/87,574.60
  6. Step 6: Final answer
    x = 71,479.27

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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.