Home / 87,679.36-131,538.48-25,345.12

Finding the Fourth Proportional to 87,679.36, 131,538.48 and 25,345.12

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Solution

The fourth proportional to 87,679.36, 131,538.48 and 25,345.12 is: 38,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,679.36 : 131,538.48 = 25,345.12 : x
  2. Step 2: Convert to fraction form
    87,679.36/131,538.48 = 25,345.12/x
  3. Step 3: Cross multiply
    87,679.36x = 131,538.48 × 25,345.12
  4. Step 4: Simplify right side
    87,679.36x = 3,333,858,560.22
  5. Step 5: Solve for x
    x = 3,333,858,560.22/87,679.36
  6. Step 6: Final answer
    x = 38,023.30

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1.5x scale

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.