Home / 87,311.76-120,394.88-58,968.24

Finding the Fourth Proportional to 87,311.76, 120,394.88 and 58,968.24

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Solution

The fourth proportional to 87,311.76, 120,394.88 and 58,968.24 is: 81,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,311.76 : 120,394.88 = 58,968.24 : x
  2. Step 2: Convert to fraction form
    87,311.76/120,394.88 = 58,968.24/x
  3. Step 3: Cross multiply
    87,311.76x = 120,394.88 × 58,968.24
  4. Step 4: Simplify right side
    87,311.76x = 7,099,474,178.61
  5. Step 5: Solve for x
    x = 7,099,474,178.61/87,311.76
  6. Step 6: Final answer
    x = 81,311.77

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1.5x scale

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.