Home / 64,723.43-89,345.97-43,515

Finding the Fourth Proportional to 64,723.43, 89,345.97 and 43,515

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Solution

The fourth proportional to 64,723.43, 89,345.97 and 43,515 is: 60,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,723.43 : 89,345.97 = 43,515 : x
  2. Step 2: Convert to fraction form
    64,723.43/89,345.97 = 43,515/x
  3. Step 3: Cross multiply
    64,723.43x = 89,345.97 × 43,515
  4. Step 4: Simplify right side
    64,723.43x = 3,887,889,884.55
  5. Step 5: Solve for x
    x = 3,887,889,884.55/64,723.43
  6. Step 6: Final answer
    x = 60,069.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.