Home / 43,293.07-64,942.05-12,130.75

Finding the Fourth Proportional to 43,293.07, 64,942.05 and 12,130.75

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Solution

The fourth proportional to 43,293.07, 64,942.05 and 12,130.75 is: 18,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,293.07 : 64,942.05 = 12,130.75 : x
  2. Step 2: Convert to fraction form
    43,293.07/64,942.05 = 12,130.75/x
  3. Step 3: Cross multiply
    43,293.07x = 64,942.05 × 12,130.75
  4. Step 4: Simplify right side
    43,293.07x = 787,795,773.04
  5. Step 5: Solve for x
    x = 787,795,773.04/43,293.07
  6. Step 6: Final answer
    x = 18,196.81

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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.