Home / 80,611.02-120,937.19-56,965.50

Finding the Fourth Proportional to 80,611.02, 120,937.19 and 56,965.50

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Solution

The fourth proportional to 80,611.02, 120,937.19 and 56,965.50 is: 85,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,611.02 : 120,937.19 = 56,965.50 : x
  2. Step 2: Convert to fraction form
    80,611.02/120,937.19 = 56,965.50/x
  3. Step 3: Cross multiply
    80,611.02x = 120,937.19 × 56,965.50
  4. Step 4: Simplify right side
    80,611.02x = 6,889,247,212.12
  5. Step 5: Solve for x
    x = 6,889,247,212.12/80,611.02
  6. Step 6: Final answer
    x = 85,462.85

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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.