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Finding the Fourth Proportional to 72,185.48, 108,277.86 and 19,594.91

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Solution

The fourth proportional to 72,185.48, 108,277.86 and 19,594.91 is: 29,392.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,185.48 : 108,277.86 = 19,594.91 : x
  2. Step 2: Convert to fraction form
    72,185.48/108,277.86 = 19,594.91/x
  3. Step 3: Cross multiply
    72,185.48x = 108,277.86 × 19,594.91
  4. Step 4: Simplify right side
    72,185.48x = 2,121,695,265.87
  5. Step 5: Solve for x
    x = 2,121,695,265.87/72,185.48
  6. Step 6: Final answer
    x = 29,392.27

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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.