Home / 87,298.64-120,485.82-51,492.62

Finding the Fourth Proportional to 87,298.64, 120,485.82 and 51,492.62

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Solution

The fourth proportional to 87,298.64, 120,485.82 and 51,492.62 is: 71,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.64 : 120,485.82 = 51,492.62 : x
  2. Step 2: Convert to fraction form
    87,298.64/120,485.82 = 51,492.62/x
  3. Step 3: Cross multiply
    87,298.64x = 120,485.82 × 51,492.62
  4. Step 4: Simplify right side
    87,298.64x = 6,204,130,544.65
  5. Step 5: Solve for x
    x = 6,204,130,544.65/87,298.64
  6. Step 6: Final answer
    x = 71,067.89

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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.