Home / 74,139.10-111,214.72-21,548.53

Finding the Fourth Proportional to 74,139.10, 111,214.72 and 21,548.53

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Solution

The fourth proportional to 74,139.10, 111,214.72 and 21,548.53 is: 32,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,139.10 : 111,214.72 = 21,548.53 : x
  2. Step 2: Convert to fraction form
    74,139.10/111,214.72 = 21,548.53/x
  3. Step 3: Cross multiply
    74,139.10x = 111,214.72 × 21,548.53
  4. Step 4: Simplify right side
    74,139.10x = 2,396,513,896.32
  5. Step 5: Solve for x
    x = 2,396,513,896.32/74,139.10
  6. Step 6: Final answer
    x = 32,324.56

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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.