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Finding the Fourth Proportional to 79,897.74, 119,848.46 and 20,735.74

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Solution

The fourth proportional to 79,897.74, 119,848.46 and 20,735.74 is: 31,104.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,897.74 : 119,848.46 = 20,735.74 : x
  2. Step 2: Convert to fraction form
    79,897.74/119,848.46 = 20,735.74/x
  3. Step 3: Cross multiply
    79,897.74x = 119,848.46 × 20,735.74
  4. Step 4: Simplify right side
    79,897.74x = 2,485,146,505.96
  5. Step 5: Solve for x
    x = 2,485,146,505.96/79,897.74
  6. Step 6: Final answer
    x = 31,104.09

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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.