Home / 64,103.73-88,439.61-40,221.69

Finding the Fourth Proportional to 64,103.73, 88,439.61 and 40,221.69

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Solution

The fourth proportional to 64,103.73, 88,439.61 and 40,221.69 is: 55,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,103.73 : 88,439.61 = 40,221.69 : x
  2. Step 2: Convert to fraction form
    64,103.73/88,439.61 = 40,221.69/x
  3. Step 3: Cross multiply
    64,103.73x = 88,439.61 × 40,221.69
  4. Step 4: Simplify right side
    64,103.73x = 3,557,190,577.14
  5. Step 5: Solve for x
    x = 3,557,190,577.14/64,103.73
  6. Step 6: Final answer
    x = 55,491.16

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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.