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Finding the Fourth Proportional to 79,710.75, 110,011.77 and 51,410.97

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Solution

The fourth proportional to 79,710.75, 110,011.77 and 51,410.97 is: 70,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,710.75 : 110,011.77 = 51,410.97 : x
  2. Step 2: Convert to fraction form
    79,710.75/110,011.77 = 51,410.97/x
  3. Step 3: Cross multiply
    79,710.75x = 110,011.77 × 51,410.97
  4. Step 4: Simplify right side
    79,710.75x = 5,655,811,807.12
  5. Step 5: Solve for x
    x = 5,655,811,807.12/79,710.75
  6. Step 6: Final answer
    x = 70,954.19

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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.