Home / 74,023.12-111,045.66-21,426.04

Finding the Fourth Proportional to 74,023.12, 111,045.66 and 21,426.04

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Solution

The fourth proportional to 74,023.12, 111,045.66 and 21,426.04 is: 32,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,023.12 : 111,045.66 = 21,426.04 : x
  2. Step 2: Convert to fraction form
    74,023.12/111,045.66 = 21,426.04/x
  3. Step 3: Cross multiply
    74,023.12x = 111,045.66 × 21,426.04
  4. Step 4: Simplify right side
    74,023.12x = 2,379,268,752.99
  5. Step 5: Solve for x
    x = 2,379,268,752.99/74,023.12
  6. Step 6: Final answer
    x = 32,142.24

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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.