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Finding the Fourth Proportional to 75,170.88, 103,710.54 and 43,339.08

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Solution

The fourth proportional to 75,170.88, 103,710.54 and 43,339.08 is: 59,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,170.88 : 103,710.54 = 43,339.08 : x
  2. Step 2: Convert to fraction form
    75,170.88/103,710.54 = 43,339.08/x
  3. Step 3: Cross multiply
    75,170.88x = 103,710.54 × 43,339.08
  4. Step 4: Simplify right side
    75,170.88x = 4,494,719,389.90
  5. Step 5: Solve for x
    x = 4,494,719,389.90/75,170.88
  6. Step 6: Final answer
    x = 59,793.36

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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.