Home / 87,157.37-130,692.87-30,989.06

Finding the Fourth Proportional to 87,157.37, 130,692.87 and 30,989.06

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Solution

The fourth proportional to 87,157.37, 130,692.87 and 30,989.06 is: 46,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,157.37 : 130,692.87 = 30,989.06 : x
  2. Step 2: Convert to fraction form
    87,157.37/130,692.87 = 30,989.06/x
  3. Step 3: Cross multiply
    87,157.37x = 130,692.87 × 30,989.06
  4. Step 4: Simplify right side
    87,157.37x = 4,050,049,190.00
  5. Step 5: Solve for x
    x = 4,050,049,190.00/87,157.37
  6. Step 6: Final answer
    x = 46,468.24

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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.