Home / 82,046.40-123,069.60-19,716.90

Finding the Fourth Proportional to 82,046.40, 123,069.60 and 19,716.90

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Solution

The fourth proportional to 82,046.40, 123,069.60 and 19,716.90 is: 29,575.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,046.40 : 123,069.60 = 19,716.90 : x
  2. Step 2: Convert to fraction form
    82,046.40/123,069.60 = 19,716.90/x
  3. Step 3: Cross multiply
    82,046.40x = 123,069.60 × 19,716.90
  4. Step 4: Simplify right side
    82,046.40x = 2,426,550,996.24
  5. Step 5: Solve for x
    x = 2,426,550,996.24/82,046.40
  6. Step 6: Final answer
    x = 29,575.35

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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.