Home / 43,236.20-64,854.54-12,071.72

Finding the Fourth Proportional to 43,236.20, 64,854.54 and 12,071.72

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Solution

The fourth proportional to 43,236.20, 64,854.54 and 12,071.72 is: 18,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,236.20 : 64,854.54 = 12,071.72 : x
  2. Step 2: Convert to fraction form
    43,236.20/64,854.54 = 12,071.72/x
  3. Step 3: Cross multiply
    43,236.20x = 64,854.54 × 12,071.72
  4. Step 4: Simplify right side
    43,236.20x = 782,905,847.61
  5. Step 5: Solve for x
    x = 782,905,847.61/43,236.20
  6. Step 6: Final answer
    x = 18,107.65

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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.