Home / 52,172.96-78,190.22-28,419.57

Finding the Fourth Proportional to 52,172.96, 78,190.22 and 28,419.57

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Solution

The fourth proportional to 52,172.96, 78,190.22 and 28,419.57 is: 42,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,172.96 : 78,190.22 = 28,419.57 : x
  2. Step 2: Convert to fraction form
    52,172.96/78,190.22 = 28,419.57/x
  3. Step 3: Cross multiply
    52,172.96x = 78,190.22 × 28,419.57
  4. Step 4: Simplify right side
    52,172.96x = 2,222,132,288.51
  5. Step 5: Solve for x
    x = 2,222,132,288.51/52,172.96
  6. Step 6: Final answer
    x = 42,591.65

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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.