Home / 80,062.24-120,168.60-40,647.64

Finding the Fourth Proportional to 80,062.24, 120,168.60 and 40,647.64

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Solution

The fourth proportional to 80,062.24, 120,168.60 and 40,647.64 is: 61,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,062.24 : 120,168.60 = 40,647.64 : x
  2. Step 2: Convert to fraction form
    80,062.24/120,168.60 = 40,647.64/x
  3. Step 3: Cross multiply
    80,062.24x = 120,168.60 × 40,647.64
  4. Step 4: Simplify right side
    80,062.24x = 4,884,569,992.10
  5. Step 5: Solve for x
    x = 4,884,569,992.10/80,062.24
  6. Step 6: Final answer
    x = 61,009.66

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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.