Home / 87,086.39-130,687.77-31,682.39

Finding the Fourth Proportional to 87,086.39, 130,687.77 and 31,682.39

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Solution

The fourth proportional to 87,086.39, 130,687.77 and 31,682.39 is: 47,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,086.39 : 130,687.77 = 31,682.39 : x
  2. Step 2: Convert to fraction form
    87,086.39/130,687.77 = 31,682.39/x
  3. Step 3: Cross multiply
    87,086.39x = 130,687.77 × 31,682.39
  4. Step 4: Simplify right side
    87,086.39x = 4,140,500,897.37
  5. Step 5: Solve for x
    x = 4,140,500,897.37/87,086.39
  6. Step 6: Final answer
    x = 47,544.75

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1.5x scale

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.