Home / 91,056.05-136,500.87-31,859.43

Finding the Fourth Proportional to 91,056.05, 136,500.87 and 31,859.43

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Solution

The fourth proportional to 91,056.05, 136,500.87 and 31,859.43 is: 47,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,056.05 : 136,500.87 = 31,859.43 : x
  2. Step 2: Convert to fraction form
    91,056.05/136,500.87 = 31,859.43/x
  3. Step 3: Cross multiply
    91,056.05x = 136,500.87 × 31,859.43
  4. Step 4: Simplify right side
    91,056.05x = 4,348,840,006.56
  5. Step 5: Solve for x
    x = 4,348,840,006.56/91,056.05
  6. Step 6: Final answer
    x = 47,760.03

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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.