Home / 74,965.70-112,376.55-43,343.30

Finding the Fourth Proportional to 74,965.70, 112,376.55 and 43,343.30

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Solution

The fourth proportional to 74,965.70, 112,376.55 and 43,343.30 is: 64,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,965.70 : 112,376.55 = 43,343.30 : x
  2. Step 2: Convert to fraction form
    74,965.70/112,376.55 = 43,343.30/x
  3. Step 3: Cross multiply
    74,965.70x = 112,376.55 × 43,343.30
  4. Step 4: Simplify right side
    74,965.70x = 4,870,770,519.62
  5. Step 5: Solve for x
    x = 4,870,770,519.62/74,965.70
  6. Step 6: Final answer
    x = 64,973.32

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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.