Home / 71,015.38-106,421.54-52,147.39

Finding the Fourth Proportional to 71,015.38, 106,421.54 and 52,147.39

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Solution

The fourth proportional to 71,015.38, 106,421.54 and 52,147.39 is: 78,146.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.38 : 106,421.54 = 52,147.39 : x
  2. Step 2: Convert to fraction form
    71,015.38/106,421.54 = 52,147.39/x
  3. Step 3: Cross multiply
    71,015.38x = 106,421.54 × 52,147.39
  4. Step 4: Simplify right side
    71,015.38x = 5,549,605,290.04
  5. Step 5: Solve for x
    x = 5,549,605,290.04/71,015.38
  6. Step 6: Final answer
    x = 78,146.53

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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.