Home / 40,729.84-61,082.78-12,265.63

Finding the Fourth Proportional to 40,729.84, 61,082.78 and 12,265.63

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Solution

The fourth proportional to 40,729.84, 61,082.78 and 12,265.63 is: 18,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.84 : 61,082.78 = 12,265.63 : x
  2. Step 2: Convert to fraction form
    40,729.84/61,082.78 = 12,265.63/x
  3. Step 3: Cross multiply
    40,729.84x = 61,082.78 × 12,265.63
  4. Step 4: Simplify right side
    40,729.84x = 749,218,564.82
  5. Step 5: Solve for x
    x = 749,218,564.82/40,729.84
  6. Step 6: Final answer
    x = 18,394.83

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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.