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Finding the Fourth Proportional to 81,174.60, 121,762.71 and 22,011.39

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Solution

The fourth proportional to 81,174.60, 121,762.71 and 22,011.39 is: 33,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174.60 : 121,762.71 = 22,011.39 : x
  2. Step 2: Convert to fraction form
    81,174.60/121,762.71 = 22,011.39/x
  3. Step 3: Cross multiply
    81,174.60x = 121,762.71 × 22,011.39
  4. Step 4: Simplify right side
    81,174.60x = 2,680,166,497.27
  5. Step 5: Solve for x
    x = 2,680,166,497.27/81,174.60
  6. Step 6: Final answer
    x = 33,017.30

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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.