Home / 87,583.58-120,829.56-64,668.32

Finding the Fourth Proportional to 87,583.58, 120,829.56 and 64,668.32

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Solution

The fourth proportional to 87,583.58, 120,829.56 and 64,668.32 is: 89,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.58 : 120,829.56 = 64,668.32 : x
  2. Step 2: Convert to fraction form
    87,583.58/120,829.56 = 64,668.32/x
  3. Step 3: Cross multiply
    87,583.58x = 120,829.56 × 64,668.32
  4. Step 4: Simplify right side
    87,583.58x = 7,813,844,651.54
  5. Step 5: Solve for x
    x = 7,813,844,651.54/87,583.58
  6. Step 6: Final answer
    x = 89,215.86

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1.5x scale

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.