Home / 77,402.33-116,105.72-21,242.90

Finding the Fourth Proportional to 77,402.33, 116,105.72 and 21,242.90

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Solution

The fourth proportional to 77,402.33, 116,105.72 and 21,242.90 is: 31,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,402.33 : 116,105.72 = 21,242.90 : x
  2. Step 2: Convert to fraction form
    77,402.33/116,105.72 = 21,242.90/x
  3. Step 3: Cross multiply
    77,402.33x = 116,105.72 × 21,242.90
  4. Step 4: Simplify right side
    77,402.33x = 2,466,422,199.39
  5. Step 5: Solve for x
    x = 2,466,422,199.39/77,402.33
  6. Step 6: Final answer
    x = 31,864.96

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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.