Home / 43,237.20-64,856.04-12,072.72

Finding the Fourth Proportional to 43,237.20, 64,856.04 and 12,072.72

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Solution

The fourth proportional to 43,237.20, 64,856.04 and 12,072.72 is: 18,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,237.20 : 64,856.04 = 12,072.72 : x
  2. Step 2: Convert to fraction form
    43,237.20/64,856.04 = 12,072.72/x
  3. Step 3: Cross multiply
    43,237.20x = 64,856.04 × 12,072.72
  4. Step 4: Simplify right side
    43,237.20x = 782,988,811.23
  5. Step 5: Solve for x
    x = 782,988,811.23/43,237.20
  6. Step 6: Final answer
    x = 18,109.15

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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.