Home / 87,657.10-131,157.60-58,132.60

Finding the Fourth Proportional to 87,657.10, 131,157.60 and 58,132.60

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Solution

The fourth proportional to 87,657.10, 131,157.60 and 58,132.60 is: 86,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,657.10 : 131,157.60 = 58,132.60 : x
  2. Step 2: Convert to fraction form
    87,657.10/131,157.60 = 58,132.60/x
  3. Step 3: Cross multiply
    87,657.10x = 131,157.60 × 58,132.60
  4. Step 4: Simplify right side
    87,657.10x = 7,624,532,297.76
  5. Step 5: Solve for x
    x = 7,624,532,297.76/87,657.10
  6. Step 6: Final answer
    x = 86,981.34

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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.