Home / 87,884.10-131,913.64-48,459.78

Finding the Fourth Proportional to 87,884.10, 131,913.64 and 48,459.78

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Solution

The fourth proportional to 87,884.10, 131,913.64 and 48,459.78 is: 72,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,884.10 : 131,913.64 = 48,459.78 : x
  2. Step 2: Convert to fraction form
    87,884.10/131,913.64 = 48,459.78/x
  3. Step 3: Cross multiply
    87,884.10x = 131,913.64 × 48,459.78
  4. Step 4: Simplify right side
    87,884.10x = 6,392,505,973.40
  5. Step 5: Solve for x
    x = 6,392,505,973.40/87,884.10
  6. Step 6: Final answer
    x = 72,737.91

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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.