Home / 87,131.40-130,524.30-51,966.60

Finding the Fourth Proportional to 87,131.40, 130,524.30 and 51,966.60

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Solution

The fourth proportional to 87,131.40, 130,524.30 and 51,966.60 is: 77,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,131.40 : 130,524.30 = 51,966.60 : x
  2. Step 2: Convert to fraction form
    87,131.40/130,524.30 = 51,966.60/x
  3. Step 3: Cross multiply
    87,131.40x = 130,524.30 × 51,966.60
  4. Step 4: Simplify right side
    87,131.40x = 6,782,904,088.38
  5. Step 5: Solve for x
    x = 6,782,904,088.38/87,131.40
  6. Step 6: Final answer
    x = 77,846.84

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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.