Home / 42,689.43-64,035.36-34,329.62

Finding the Fourth Proportional to 42,689.43, 64,035.36 and 34,329.62

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Solution

The fourth proportional to 42,689.43, 64,035.36 and 34,329.62 is: 51,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,689.43 : 64,035.36 = 34,329.62 : x
  2. Step 2: Convert to fraction form
    42,689.43/64,035.36 = 34,329.62/x
  3. Step 3: Cross multiply
    42,689.43x = 64,035.36 × 34,329.62
  4. Step 4: Simplify right side
    42,689.43x = 2,198,309,735.45
  5. Step 5: Solve for x
    x = 2,198,309,735.45/42,689.43
  6. Step 6: Final answer
    x = 51,495.41

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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.