Home / 42,940.26-64,433.43-18,310.50

Finding the Fourth Proportional to 42,940.26, 64,433.43 and 18,310.50

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Solution

The fourth proportional to 42,940.26, 64,433.43 and 18,310.50 is: 27,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940.26 : 64,433.43 = 18,310.50 : x
  2. Step 2: Convert to fraction form
    42,940.26/64,433.43 = 18,310.50/x
  3. Step 3: Cross multiply
    42,940.26x = 64,433.43 × 18,310.50
  4. Step 4: Simplify right side
    42,940.26x = 1,179,808,320.02
  5. Step 5: Solve for x
    x = 1,179,808,320.02/42,940.26
  6. Step 6: Final answer
    x = 27,475.57

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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.