Home / 77,003.43-115,505.81-27,083.89

Finding the Fourth Proportional to 77,003.43, 115,505.81 and 27,083.89

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Solution

The fourth proportional to 77,003.43, 115,505.81 and 27,083.89 is: 40,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.43 : 115,505.81 = 27,083.89 : x
  2. Step 2: Convert to fraction form
    77,003.43/115,505.81 = 27,083.89/x
  3. Step 3: Cross multiply
    77,003.43x = 115,505.81 × 27,083.89
  4. Step 4: Simplify right side
    77,003.43x = 3,128,346,652.40
  5. Step 5: Solve for x
    x = 3,128,346,652.40/77,003.43
  6. Step 6: Final answer
    x = 40,626.07

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1.5x scale

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.