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Finding the Fourth Proportional to 43,691.04, 65,529.27 and 12,519

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Solution

The fourth proportional to 43,691.04, 65,529.27 and 12,519 is: 18,776.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691.04 : 65,529.27 = 12,519 : x
  2. Step 2: Convert to fraction form
    43,691.04/65,529.27 = 12,519/x
  3. Step 3: Cross multiply
    43,691.04x = 65,529.27 × 12,519
  4. Step 4: Simplify right side
    43,691.04x = 820,360,931.13
  5. Step 5: Solve for x
    x = 820,360,931.13/43,691.04
  6. Step 6: Final answer
    x = 18,776.41

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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.