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Finding the Fourth Proportional to 52,945.67, 79,400.89 and 21,347.57

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Solution

The fourth proportional to 52,945.67, 79,400.89 and 21,347.57 is: 32,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,945.67 : 79,400.89 = 21,347.57 : x
  2. Step 2: Convert to fraction form
    52,945.67/79,400.89 = 21,347.57/x
  3. Step 3: Cross multiply
    52,945.67x = 79,400.89 × 21,347.57
  4. Step 4: Simplify right side
    52,945.67x = 1,695,016,057.34
  5. Step 5: Solve for x
    x = 1,695,016,057.34/52,945.67
  6. Step 6: Final answer
    x = 32,014.25

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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.