Home / 40,097.55-60,129.39-12,021.60

Finding the Fourth Proportional to 40,097.55, 60,129.39 and 12,021.60

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Solution

The fourth proportional to 40,097.55, 60,129.39 and 12,021.60 is: 18,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,097.55 : 60,129.39 = 12,021.60 : x
  2. Step 2: Convert to fraction form
    40,097.55/60,129.39 = 12,021.60/x
  3. Step 3: Cross multiply
    40,097.55x = 60,129.39 × 12,021.60
  4. Step 4: Simplify right side
    40,097.55x = 722,851,474.82
  5. Step 5: Solve for x
    x = 722,851,474.82/40,097.55
  6. Step 6: Final answer
    x = 18,027.32

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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.