Home / 74,399.94-111,605.61-21,091.02

Finding the Fourth Proportional to 74,399.94, 111,605.61 and 21,091.02

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Solution

The fourth proportional to 74,399.94, 111,605.61 and 21,091.02 is: 31,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,399.94 : 111,605.61 = 21,091.02 : x
  2. Step 2: Convert to fraction form
    74,399.94/111,605.61 = 21,091.02/x
  3. Step 3: Cross multiply
    74,399.94x = 111,605.61 × 21,091.02
  4. Step 4: Simplify right side
    74,399.94x = 2,353,876,152.62
  5. Step 5: Solve for x
    x = 2,353,876,152.62/74,399.94
  6. Step 6: Final answer
    x = 31,638.15

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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.