Home / 74,091.84-111,143.16-21,501.60

Finding the Fourth Proportional to 74,091.84, 111,143.16 and 21,501.60

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Solution

The fourth proportional to 74,091.84, 111,143.16 and 21,501.60 is: 32,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,091.84 : 111,143.16 = 21,501.60 : x
  2. Step 2: Convert to fraction form
    74,091.84/111,143.16 = 21,501.60/x
  3. Step 3: Cross multiply
    74,091.84x = 111,143.16 × 21,501.60
  4. Step 4: Simplify right side
    74,091.84x = 2,389,755,769.06
  5. Step 5: Solve for x
    x = 2,389,755,769.06/74,091.84
  6. Step 6: Final answer
    x = 32,253.97

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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.