Home / 87,837.80-131,756.70-48,374.60

Finding the Fourth Proportional to 87,837.80, 131,756.70 and 48,374.60

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Solution

The fourth proportional to 87,837.80, 131,756.70 and 48,374.60 is: 72,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.80 : 131,756.70 = 48,374.60 : x
  2. Step 2: Convert to fraction form
    87,837.80/131,756.70 = 48,374.60/x
  3. Step 3: Cross multiply
    87,837.80x = 131,756.70 × 48,374.60
  4. Step 4: Simplify right side
    87,837.80x = 6,373,677,659.82
  5. Step 5: Solve for x
    x = 6,373,677,659.82/87,837.80
  6. Step 6: Final answer
    x = 72,561.90

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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.