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Finding the Fourth Proportional to 70,262.09, 105,406.13 and 22,242.79

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Solution

The fourth proportional to 70,262.09, 105,406.13 and 22,242.79 is: 33,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,262.09 : 105,406.13 = 22,242.79 : x
  2. Step 2: Convert to fraction form
    70,262.09/105,406.13 = 22,242.79/x
  3. Step 3: Cross multiply
    70,262.09x = 105,406.13 × 22,242.79
  4. Step 4: Simplify right side
    70,262.09x = 2,344,526,414.30
  5. Step 5: Solve for x
    x = 2,344,526,414.30/70,262.09
  6. Step 6: Final answer
    x = 33,368.30

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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.