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Finding the Fourth Proportional to 75,165.31, 103,736.86 and 43,335.35

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Solution

The fourth proportional to 75,165.31, 103,736.86 and 43,335.35 is: 59,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,165.31 : 103,736.86 = 43,335.35 : x
  2. Step 2: Convert to fraction form
    75,165.31/103,736.86 = 43,335.35/x
  3. Step 3: Cross multiply
    75,165.31x = 103,736.86 × 43,335.35
  4. Step 4: Simplify right side
    75,165.31x = 4,495,472,508.98
  5. Step 5: Solve for x
    x = 4,495,472,508.98/75,165.31
  6. Step 6: Final answer
    x = 59,807.81

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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.