Home / 87,393.35-120,622.74-61,873.19

Finding the Fourth Proportional to 87,393.35, 120,622.74 and 61,873.19

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Solution

The fourth proportional to 87,393.35, 120,622.74 and 61,873.19 is: 85,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,393.35 : 120,622.74 = 61,873.19 : x
  2. Step 2: Convert to fraction form
    87,393.35/120,622.74 = 61,873.19/x
  3. Step 3: Cross multiply
    87,393.35x = 120,622.74 × 61,873.19
  4. Step 4: Simplify right side
    87,393.35x = 7,463,313,327.54
  5. Step 5: Solve for x
    x = 7,463,313,327.54/87,393.35
  6. Step 6: Final answer
    x = 85,399.10

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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.