Home / 80,290.47-120,431.03-24,129.39

Finding the Fourth Proportional to 80,290.47, 120,431.03 and 24,129.39

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Solution

The fourth proportional to 80,290.47, 120,431.03 and 24,129.39 is: 36,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,290.47 : 120,431.03 = 24,129.39 : x
  2. Step 2: Convert to fraction form
    80,290.47/120,431.03 = 24,129.39/x
  3. Step 3: Cross multiply
    80,290.47x = 120,431.03 × 24,129.39
  4. Step 4: Simplify right side
    80,290.47x = 2,905,927,170.32
  5. Step 5: Solve for x
    x = 2,905,927,170.32/80,290.47
  6. Step 6: Final answer
    x = 36,192.68

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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.