Home / 92,981.62-128,313.87-50,540.02

Finding the Fourth Proportional to 92,981.62, 128,313.87 and 50,540.02

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Solution

The fourth proportional to 92,981.62, 128,313.87 and 50,540.02 is: 69,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,981.62 : 128,313.87 = 50,540.02 : x
  2. Step 2: Convert to fraction form
    92,981.62/128,313.87 = 50,540.02/x
  3. Step 3: Cross multiply
    92,981.62x = 128,313.87 × 50,540.02
  4. Step 4: Simplify right side
    92,981.62x = 6,484,985,556.08
  5. Step 5: Solve for x
    x = 6,484,985,556.08/92,981.62
  6. Step 6: Final answer
    x = 69,744.81

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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.