Home / 87,245.64-130,873.32-28,076.76

Finding the Fourth Proportional to 87,245.64, 130,873.32 and 28,076.76

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Solution

The fourth proportional to 87,245.64, 130,873.32 and 28,076.76 is: 42,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.64 : 130,873.32 = 28,076.76 : x
  2. Step 2: Convert to fraction form
    87,245.64/130,873.32 = 28,076.76/x
  3. Step 3: Cross multiply
    87,245.64x = 130,873.32 × 28,076.76
  4. Step 4: Simplify right side
    87,245.64x = 3,674,498,796.04
  5. Step 5: Solve for x
    x = 3,674,498,796.04/87,245.64
  6. Step 6: Final answer
    x = 42,116.70

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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.