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Finding the Fourth Proportional to 79,127.40, 118,692.30 and 25,819.14

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Solution

The fourth proportional to 79,127.40, 118,692.30 and 25,819.14 is: 38,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.40 : 118,692.30 = 25,819.14 : x
  2. Step 2: Convert to fraction form
    79,127.40/118,692.30 = 25,819.14/x
  3. Step 3: Cross multiply
    79,127.40x = 118,692.30 × 25,819.14
  4. Step 4: Simplify right side
    79,127.40x = 3,064,533,110.62
  5. Step 5: Solve for x
    x = 3,064,533,110.62/79,127.40
  6. Step 6: Final answer
    x = 38,729.10

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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.