Home / 87,083.14-130,682.96-31,679.14

Finding the Fourth Proportional to 87,083.14, 130,682.96 and 31,679.14

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Solution

The fourth proportional to 87,083.14, 130,682.96 and 31,679.14 is: 47,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,083.14 : 130,682.96 = 31,679.14 : x
  2. Step 2: Convert to fraction form
    87,083.14/130,682.96 = 31,679.14/x
  3. Step 3: Cross multiply
    87,083.14x = 130,682.96 × 31,679.14
  4. Step 4: Simplify right side
    87,083.14x = 4,139,923,785.45
  5. Step 5: Solve for x
    x = 4,139,923,785.45/87,083.14
  6. Step 6: Final answer
    x = 47,539.90

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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.