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Finding the Fourth Proportional to 79,707.88, 110,006.82 and 51,495.40

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Solution

The fourth proportional to 79,707.88, 110,006.82 and 51,495.40 is: 71,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,707.88 : 110,006.82 = 51,495.40 : x
  2. Step 2: Convert to fraction form
    79,707.88/110,006.82 = 51,495.40/x
  3. Step 3: Cross multiply
    79,707.88x = 110,006.82 × 51,495.40
  4. Step 4: Simplify right side
    79,707.88x = 5,664,845,198.63
  5. Step 5: Solve for x
    x = 5,664,845,198.63/79,707.88
  6. Step 6: Final answer
    x = 71,070.08

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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.