Home / 87,236.20-130,825.50-28,057.72

Finding the Fourth Proportional to 87,236.20, 130,825.50 and 28,057.72

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Solution

The fourth proportional to 87,236.20, 130,825.50 and 28,057.72 is: 42,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,236.20 : 130,825.50 = 28,057.72 : x
  2. Step 2: Convert to fraction form
    87,236.20/130,825.50 = 28,057.72/x
  3. Step 3: Cross multiply
    87,236.20x = 130,825.50 × 28,057.72
  4. Step 4: Simplify right side
    87,236.20x = 3,670,665,247.86
  5. Step 5: Solve for x
    x = 3,670,665,247.86/87,236.20
  6. Step 6: Final answer
    x = 42,077.32

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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.