Home / 40,705.20-61,049.70-19,645.20

Finding the Fourth Proportional to 40,705.20, 61,049.70 and 19,645.20

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Solution

The fourth proportional to 40,705.20, 61,049.70 and 19,645.20 is: 29,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,705.20 : 61,049.70 = 19,645.20 : x
  2. Step 2: Convert to fraction form
    40,705.20/61,049.70 = 19,645.20/x
  3. Step 3: Cross multiply
    40,705.20x = 61,049.70 × 19,645.20
  4. Step 4: Simplify right side
    40,705.20x = 1,199,333,566.44
  5. Step 5: Solve for x
    x = 1,199,333,566.44/40,705.20
  6. Step 6: Final answer
    x = 29,463.89

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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.