Home / 82,446.60-123,669.90-72,933.15

Finding the Fourth Proportional to 82,446.60, 123,669.90 and 72,933.15

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Solution

The fourth proportional to 82,446.60, 123,669.90 and 72,933.15 is: 109,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,446.60 : 123,669.90 = 72,933.15 : x
  2. Step 2: Convert to fraction form
    82,446.60/123,669.90 = 72,933.15/x
  3. Step 3: Cross multiply
    82,446.60x = 123,669.90 × 72,933.15
  4. Step 4: Simplify right side
    82,446.60x = 9,019,635,367.19
  5. Step 5: Solve for x
    x = 9,019,635,367.19/82,446.60
  6. Step 6: Final answer
    x = 109,399.73

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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.