Home / 76,216.40-114,454.20-56,517.20

Finding the Fourth Proportional to 76,216.40, 114,454.20 and 56,517.20

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Solution

The fourth proportional to 76,216.40, 114,454.20 and 56,517.20 is: 84,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,216.40 : 114,454.20 = 56,517.20 : x
  2. Step 2: Convert to fraction form
    76,216.40/114,454.20 = 56,517.20/x
  3. Step 3: Cross multiply
    76,216.40x = 114,454.20 × 56,517.20
  4. Step 4: Simplify right side
    76,216.40x = 6,468,630,912.24
  5. Step 5: Solve for x
    x = 6,468,630,912.24/76,216.40
  6. Step 6: Final answer
    x = 84,871.90

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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.