Home / 87,009.80-130,793.10-80,846.60

Finding the Fourth Proportional to 87,009.80, 130,793.10 and 80,846.60

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Solution

The fourth proportional to 87,009.80, 130,793.10 and 80,846.60 is: 121,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,009.80 : 130,793.10 = 80,846.60 : x
  2. Step 2: Convert to fraction form
    87,009.80/130,793.10 = 80,846.60/x
  3. Step 3: Cross multiply
    87,009.80x = 130,793.10 × 80,846.60
  4. Step 4: Simplify right side
    87,009.80x = 10,574,177,438.46
  5. Step 5: Solve for x
    x = 10,574,177,438.46/87,009.80
  6. Step 6: Final answer
    x = 121,528.58

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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.