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Finding the Fourth Proportional to 79,406.78, 119,130.15 and 35,045.78

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Solution

The fourth proportional to 79,406.78, 119,130.15 and 35,045.78 is: 52,577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,406.78 : 119,130.15 = 35,045.78 : x
  2. Step 2: Convert to fraction form
    79,406.78/119,130.15 = 35,045.78/x
  3. Step 3: Cross multiply
    79,406.78x = 119,130.15 × 35,045.78
  4. Step 4: Simplify right side
    79,406.78x = 4,175,009,028.27
  5. Step 5: Solve for x
    x = 4,175,009,028.27/79,406.78
  6. Step 6: Final answer
    x = 52,577.49

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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.