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Finding the Fourth Proportional to 75,396.69, 104,055.75 and 43,134.30

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Solution

The fourth proportional to 75,396.69, 104,055.75 and 43,134.30 is: 59,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,396.69 : 104,055.75 = 43,134.30 : x
  2. Step 2: Convert to fraction form
    75,396.69/104,055.75 = 43,134.30/x
  3. Step 3: Cross multiply
    75,396.69x = 104,055.75 × 43,134.30
  4. Step 4: Simplify right side
    75,396.69x = 4,488,371,937.23
  5. Step 5: Solve for x
    x = 4,488,371,937.23/75,396.69
  6. Step 6: Final answer
    x = 59,530.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.