Home / 87,043.68-120,157.02-58,787.64

Finding the Fourth Proportional to 87,043.68, 120,157.02 and 58,787.64

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Solution

The fourth proportional to 87,043.68, 120,157.02 and 58,787.64 is: 81,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,043.68 : 120,157.02 = 58,787.64 : x
  2. Step 2: Convert to fraction form
    87,043.68/120,157.02 = 58,787.64/x
  3. Step 3: Cross multiply
    87,043.68x = 120,157.02 × 58,787.64
  4. Step 4: Simplify right side
    87,043.68x = 7,063,747,635.23
  5. Step 5: Solve for x
    x = 7,063,747,635.23/87,043.68
  6. Step 6: Final answer
    x = 81,151.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.