Home / 87,533.86-120,542.48-76,043.54

Finding the Fourth Proportional to 87,533.86, 120,542.48 and 76,043.54

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Solution

The fourth proportional to 87,533.86, 120,542.48 and 76,043.54 is: 104,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,533.86 : 120,542.48 = 76,043.54 : x
  2. Step 2: Convert to fraction form
    87,533.86/120,542.48 = 76,043.54/x
  3. Step 3: Cross multiply
    87,533.86x = 120,542.48 × 76,043.54
  4. Step 4: Simplify right side
    87,533.86x = 9,166,476,899.58
  5. Step 5: Solve for x
    x = 9,166,476,899.58/87,533.86
  6. Step 6: Final answer
    x = 104,719.21

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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.