Home / 93,163.49-128,561.33-50,721.89

Finding the Fourth Proportional to 93,163.49, 128,561.33 and 50,721.89

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Solution

The fourth proportional to 93,163.49, 128,561.33 and 50,721.89 is: 69,993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,163.49 : 128,561.33 = 50,721.89 : x
  2. Step 2: Convert to fraction form
    93,163.49/128,561.33 = 50,721.89/x
  3. Step 3: Cross multiply
    93,163.49x = 128,561.33 × 50,721.89
  4. Step 4: Simplify right side
    93,163.49x = 6,520,873,384.90
  5. Step 5: Solve for x
    x = 6,520,873,384.90/93,163.49
  6. Step 6: Final answer
    x = 69,993.87

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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.