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Finding the Fourth Proportional to 55,352.40, 83,028.60 and 52,290.60

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Solution

The fourth proportional to 55,352.40, 83,028.60 and 52,290.60 is: 78,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,352.40 : 83,028.60 = 52,290.60 : x
  2. Step 2: Convert to fraction form
    55,352.40/83,028.60 = 52,290.60/x
  3. Step 3: Cross multiply
    55,352.40x = 83,028.60 × 52,290.60
  4. Step 4: Simplify right side
    55,352.40x = 4,341,615,311.16
  5. Step 5: Solve for x
    x = 4,341,615,311.16/55,352.40
  6. Step 6: Final answer
    x = 78,435.90

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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.