Home / 49,475.70-74,104.20-19,878.30

Finding the Fourth Proportional to 49,475.70, 74,104.20 and 19,878.30

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Solution

The fourth proportional to 49,475.70, 74,104.20 and 19,878.30 is: 29,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,475.70 : 74,104.20 = 19,878.30 : x
  2. Step 2: Convert to fraction form
    49,475.70/74,104.20 = 19,878.30/x
  3. Step 3: Cross multiply
    49,475.70x = 74,104.20 × 19,878.30
  4. Step 4: Simplify right side
    49,475.70x = 1,473,065,518.86
  5. Step 5: Solve for x
    x = 1,473,065,518.86/49,475.70
  6. Step 6: Final answer
    x = 29,773.52

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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.