Home / 81,659.20-122,414.96-56,710.98

Finding the Fourth Proportional to 81,659.20, 122,414.96 and 56,710.98

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Solution

The fourth proportional to 81,659.20, 122,414.96 and 56,710.98 is: 85,015.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,659.20 : 122,414.96 = 56,710.98 : x
  2. Step 2: Convert to fraction form
    81,659.20/122,414.96 = 56,710.98/x
  3. Step 3: Cross multiply
    81,659.20x = 122,414.96 × 56,710.98
  4. Step 4: Simplify right side
    81,659.20x = 6,942,272,348.26
  5. Step 5: Solve for x
    x = 6,942,272,348.26/81,659.20
  6. Step 6: Final answer
    x = 85,015.19

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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.