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Finding the Fourth Proportional to 87,999.60, 131,999.24 and 35,396.70

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Solution

The fourth proportional to 87,999.60, 131,999.24 and 35,396.70 is: 53,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.60 : 131,999.24 = 35,396.70 : x
  2. Step 2: Convert to fraction form
    87,999.60/131,999.24 = 35,396.70/x
  3. Step 3: Cross multiply
    87,999.60x = 131,999.24 × 35,396.70
  4. Step 4: Simplify right side
    87,999.60x = 4,672,337,498.51
  5. Step 5: Solve for x
    x = 4,672,337,498.51/87,999.60
  6. Step 6: Final answer
    x = 53,094.99

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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.