Home / 52,909.96-79,364.05-21,319.26

Finding the Fourth Proportional to 52,909.96, 79,364.05 and 21,319.26

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Solution

The fourth proportional to 52,909.96, 79,364.05 and 21,319.26 is: 31,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,909.96 : 79,364.05 = 21,319.26 : x
  2. Step 2: Convert to fraction form
    52,909.96/79,364.05 = 21,319.26/x
  3. Step 3: Cross multiply
    52,909.96x = 79,364.05 × 21,319.26
  4. Step 4: Simplify right side
    52,909.96x = 1,691,982,816.60
  5. Step 5: Solve for x
    x = 1,691,982,816.60/52,909.96
  6. Step 6: Final answer
    x = 31,978.53

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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.