Home / 43,298.48-64,940.40-12,126.56

Finding the Fourth Proportional to 43,298.48, 64,940.40 and 12,126.56

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Solution

The fourth proportional to 43,298.48, 64,940.40 and 12,126.56 is: 18,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,298.48 : 64,940.40 = 12,126.56 : x
  2. Step 2: Convert to fraction form
    43,298.48/64,940.40 = 12,126.56/x
  3. Step 3: Cross multiply
    43,298.48x = 64,940.40 × 12,126.56
  4. Step 4: Simplify right side
    43,298.48x = 787,503,657.02
  5. Step 5: Solve for x
    x = 787,503,657.02/43,298.48
  6. Step 6: Final answer
    x = 18,187.79

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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.