Home / 74,847.42-112,352.01-66,580.38

Finding the Fourth Proportional to 74,847.42, 112,352.01 and 66,580.38

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Solution

The fourth proportional to 74,847.42, 112,352.01 and 66,580.38 is: 99,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,847.42 : 112,352.01 = 66,580.38 : x
  2. Step 2: Convert to fraction form
    74,847.42/112,352.01 = 66,580.38/x
  3. Step 3: Cross multiply
    74,847.42x = 112,352.01 × 66,580.38
  4. Step 4: Simplify right side
    74,847.42x = 7,480,439,519.56
  5. Step 5: Solve for x
    x = 7,480,439,519.56/74,847.42
  6. Step 6: Final answer
    x = 99,942.52

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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.